def plot(self):
f = pylab.figure(figsize=(8,4))
co = [] #colors container
for label, (pVal, logratio) in self.data.get(["pValue", "log2Ratio"]).iterrows():
if pVal < self.pCut:
if logratio > 0:
co.append(Colors().redColor)
elif logratio < 0:
co.append(Colors().greenColor)
else:
raise Exception
else:
co.append(Colors().blueColor)
#print "Probability this is from a normal distribution: %.3e" %stats.normaltest(self.log2Ratio)[1]
#ax = f.add_subplot(121)
#pylab.axvline(self.meanLog2Ratio, color=Colors().redColor)
#pylab.axvspan(self.meanLog2Ratio-(2*self.stdLog2Ratio),
# self.meanLog2Ratio+(2*self.stdLog2Ratio), color=Colors().blueColor, alpha=0.2)
#his = pylab.hist(self.log2Ratio, bins=50, color=Colors().blueColor)
#pylab.xlabel("log2 Ratio %s/%s" %(self.sampleNames[1], self.sampleNames[0]))
#pylab.ylabel("Frequency")
ax = f.add_subplot(111, aspect='equal')
pylab.scatter(self.genes1, self.genes2, c=co, alpha=0.5)
pylab.ylabel("%s RPKM" %self.sampleNames[1])
pylab.xlabel("%s RPKM" %self.sampleNames[0])
pylab.yscale('log')
pylab.xscale('log')
pylab.tight_layout()
def TestOverAlpha():
nDim = 5
numOfParticles = 10
maxIteration = 2000
minX = array([-100.0]*nDim)
maxX = array([100.0]*nDim)
maxV = 1.0*(maxX - minX)
minV = -1.0*maxV
numOfTrial = 10
intDim = 4
alpha = 0.3
while alpha<1.0:
gBest = array([0.0]*maxIteration)
for i in xrange(numOfTrial):
p1 = AUPSO.PSOProblem(nDim, numOfParticles, maxIteration, minX, maxX, minV, maxV, AUPSO.Sphere,intDim,alpha)
p1.run()
gBest = gBest + p1.gBestArray[:maxIteration]
gBest = gBest / numOfTrial
pylab.plot(range(maxIteration), gBest,label='alpha='+str(alpha))
print 'alpha = ', alpha
alpha += 0.3
print 'now drawing'
pylab.title('$G_{best}$ over 20 trials'+' intDim='+str(intDim))
pylab.xlabel('The $N^{th}$ Iteratioin')
pylab.ylabel('Average gBest over '+str(numOfTrial)+' runs')
pylab.grid(True)
pylab.yscale('log')
ylim = [-6, 1]
ystep = 1.0
# pylab.ylim(ylim[0], ylim[1])
# yticks = linspace(ylim[0], ylim[1], int((ylim[1]-ylim[0])/ystep+1))
# pylab.yticks(tuple(yticks), tuple(map(str,yticks)))
pylab.legend(loc='lower left')
pylab.show()
def plot_values(X, Y, xlabel, ylabel, suffix, ptype='plot'):
output_filename = constants.ATTRACTIVENESS_FOLDER_NAME + constants.DATASET + '_' + suffix
X1 = [X[i] for i in range(len(X)) if X[i]>0 and Y[i]>0]
Y1 = [Y[i] for i in range(len(X)) if X[i]>0 and Y[i]>0]
X = X1
Y = Y1
pylab.close("all")
pylab.figure(figsize=(8, 7))
#pylab.rcParams.update({'font.size': 20})
pylab.scatter(X, Y)
#pylab.axis(vis.get_bounds(X, Y, False, False))
#pylab.xscale('log')
pylab.yscale('log')
pylab.xlabel(xlabel)
pylab.ylabel(ylabel)
#pylab.xlim(0.1,1)
#pylab.ylim(ymin=0.01)
#pylab.tight_layout()
pylab.savefig(output_filename + '.pdf')
def plot_fft_brams(new_pasp):
run = True
pylab.ion()
pylab.cla()
pylab.yscale("log")
# read in initial data from the fft brams
fftscope_power = new_pasp.get_fft_brams_power()
# set up bars for each pasp channel
fftscope_power_line = pylab.bar(range(0, new_pasp.numchannels), fftscope_power)
pylab.ylim(1, 1000000)
# plot forever
# for i in range(1,10):
while run:
try:
fftscope_power = new_pasp.get_fft_brams_power()
# update the rectangles
for j in range(0, new_pasp.numchannels):
fftscope_power_line[j].set_height(fftscope_power[j])
pylab.draw()
except KeyboardInterrupt:
run = False
# after receiving an interrupt wait before closing the plot
raw_input("Press enter to quit: ")
pylab.cla()
def main(k,m,x,v,t0,tf,dt):
xs=numpy.arange(t0,tf+dt/2,dt)
w2=k/m
ys1=[]
es1=[]
x1=x
v1=v
for i in xs:
#euler
vtemp=v1
v1=v1-w2*x1*dt
x1=x1+v1*dt
e1=(k*x1**2+m*v1**2)/2
ys1+=[x1]
es1+=[e1]
#pylab.plot(xs,ys1,'-',label='x(t) - Euler')
e0=(k*x**2+m*v**2)/2
incl=numpy.log(e1-e0)/(tf-t0)
pylab.plot(xs,es1,'-',label='E(t); dt=%f'%(dt))
pylab.xlabel('t')
pylab.ylabel('E')
pylab.yscale('log')
pylab.legend(loc=8)
for x,y1,e1 in zip(xs,ys1,es1):
print x, y1, e1
def ShowRawToF():
raw_codes = GetTimecodes_AllFilesInDir(timepix_path_1, xmin, xmax, ymin, ymax, 0, checkerboard_phase = None)
offset = 0
tmin = 0
tmax = 11810
fig = pl.figure(figsize=(14,10))
n_codes, bins, patches = pl.hist([11810-i for i in raw_codes], bins = 11810, range = [0,11810])
pl.yscale('log', nonposy='clip')
for i,code in enumerate(raw_codes):
raw_codes[i] = (11810. - code) - offset
raw_codes[i] *= 20
fig = pl.figure(figsize=(14,10))
n_codes, bins, patches = pl.hist(raw_codes, bins = 1000, range = [0,40000])
# n_codes, bins, patches = pl.hist(raw_codes, bins = tmax-tmin, range = [tmin,tmax])
# pl.clf()
# n_codes = n_codes[:-1]
# pl.plot(bins, n_codes, 'k-.o', label="Timecodes")
pl.tight_layout()
pl.show()
def plot_charts2(data1, data2=None, xlabel=None, ylabel=None, size=(10, 4), log_scale=True):
plt.figure(figsize=size)
plt.grid()
plt.xlabel(xlabel)
plt.ylabel(ylabel)
plt.plot(data1, color='blue', lw=2)
plt.plot(data1,
linestyle='None',
markerfacecolor='white',
markeredgecolor='blue',
marker='o',
markeredgewidth=2,
markersize=8)
if data2 is not None:
plt.plot(data2, color='red', lw=2)
plt.plot(data2,
linestyle='None',
markerfacecolor='white',
markeredgecolor='red',
marker='o',
markeredgewidth=2,
markersize=8)
if log_scale:
plt.yscale('log')
plt.xlim(-0.2, len(data1) + 0.2)
plt.ylim(0.8)
plt.show()
def esat_comparison_plot(t=_np.linspace(173.15, 373.15, 20), std="Hyland_Wexler", percent=True, log=False):
import pylab
import brewer2mpl
methods = list(esat(0, method="return"))
methods.remove(std)
print len(methods)
pylab.rcParams.update({"axes.color_cycle": brewer2mpl.get_map("Paired", "qualitative", 12).mpl_colors})
y = esat(t, method=std, info=False)
i = 0
style = "-"
for im in methods:
if i > 11:
style = "--"
print im
if percent:
pylab.plot(t, 100.0 * (esat(t, method=im, info=False) - y) / y, lw=2, ls=style)
else:
pylab.plot(t, esat(t, method=im, info=False) - y, lw=2, ls=style)
i += 1
pylab.legend(methods, loc="upper right", fontsize=8)
pylab.xlabel("Temperature [K]")
if percent:
# pylab.semilogy()
pylab.ylabel("Water Vapor Pressure Difference [%]")
else:
pylab.ylabel("Water Vapor Pressure [Pa]")
pylab.title("Comparison of Water Vapor Calculations Ref:" + std)
pylab.xlim(_np.round(t[0]), _np.round(t[-1]))
pylab.grid()
pylab.axvline(x=273.15, color="k")
if log:
pylab.yscale("log")
def _show_rates(rate, wo, wt, attenuator, tau_NP, tau_P):
import pylab
#pylab.figure()
pylab.errorbar(rate, wt[0], yerr=wt[1], fmt='g.', label='attenuated')
pylab.errorbar(rate, wo[0], yerr=wo[1], fmt='b.', label='unattenuated')
pylab.xscale('log')
pylab.yscale('log')
pylab.xlabel('incident rate (counts/second)')
pylab.ylabel('observed rate (counts/second)')
pylab.legend(loc='best')
pylab.grid(True)
pylab.plot(rate, rate/attenuator, 'g-', label='target')
pylab.plot(rate, rate, 'b-', label='target')
Ipeak, Rpeak = peak_rate(tau_NP=tau_NP, tau_P=tau_P)
if rate[0] <= Ipeak <= rate[-1]:
pylab.axvline(x=Ipeak, ls='--', c='b')
pylab.text(x=Ipeak, y=0.05, s=' %g'%Ipeak,
ha='left', va='bottom',
transform=pylab.gca().get_xaxis_transform())
if False:
pylab.axhline(y=Rpeak, ls='--', c='b')
pylab.text(y=Rpeak, x=0.05, s=' %g\n'%Rpeak,
ha='left', va='bottom',
transform=pylab.gca().get_yaxis_transform())
def plot_percentage(women_percentage, men_percentage, colors, xaxis_values, filename):
"""
plots the percentage of people who show up in N language editions
:param men:
:param women:
:param colors:
:return:
"""
fig = plt.figure(figsize=(6,6))
if len(colors) == 0:
plt.gca().set_color_cycle(['pink', 'blue', 'yellow', 'red', 'black'])
else:
plt.gca().set_color_cycle(colors)
#print xaxis_values
#print women_percentage
#print len(xaxis_values)
#print len(women_percentage)
plt.plot(xaxis_values, women_percentage[:len(xaxis_values)], linewidth=1)
plt.plot(xaxis_values, men_percentage[:len(xaxis_values)], linewidth=1)
plt.xlabel("Log Num Editions")
plt.ylabel("Log Proportion")
plt.xscale("log")
plt.yscale("log")
#plt.ysca:len(xaxis_values)lotle("log")
plt.savefig(filename)
plt.close()
def plot(self):
f = pylab.figure(figsize=(8,4))
co = [] #colors container
for zScore, r in itertools.izip(self.zScores, self.log2Ratio):
if zScore < self.pCut:
if r > 0:
co.append(Colors().greenColor)
elif r < 0:
co.append(Colors().redColor)
else:
raise Exception
else:
co.append(Colors().blueColor)
#print "Probability this is from a normal distribution: %.3e" %stats.normaltest(self.log2Ratio)[1]
ax = f.add_subplot(121)
pylab.axvline(self.meanLog2Ratio, color=Colors().redColor)
pylab.axvspan(self.meanLog2Ratio-(2*self.stdLog2Ratio),
self.meanLog2Ratio+(2*self.stdLog2Ratio), color=Colors().blueColor, alpha=0.2)
his = pylab.hist(self.log2Ratio, bins=50, color=Colors().blueColor)
pylab.xlabel("log2 Ratio %s/%s" %(self.sampleNames[1], self.sampleNames[0]))
pylab.ylabel("Frequency")
ax = f.add_subplot(122, aspect='equal')
pylab.scatter(self.genes1, self.genes2, c=co, alpha=0.5)
pylab.ylabel("%s RPKM" %self.sampleNames[1])
pylab.xlabel("%s RPKM" %self.sampleNames[0])
pylab.yscale('log')
pylab.xscale('log')
pylab.tight_layout()
def _set_axis_parameter( self ):
# set axis to equal length
params = self.__params
ax_0 = self._get_axis()
# set axis aspect
pylab.xlim(params['xlim'])
pylab.ylim(params['ylim'])
x0,x1 = ax_0.get_xlim()
y0,y1 = ax_0.get_ylim()
if params['xlog'] and params['ylog']:
delta_x = float(np.log(x1)-np.log(x0))
delta_y = float(np.log(y1)-np.log(y0))
else:
delta_x = float(x1 - x0)
delta_y = float(y1 - y0)
ax_0.set_aspect(delta_x/delta_y)
# set tick size
ax_0.tick_params(axis='both', labelsize=params['ticksize'])
# set logarithmic scale
if params['xlog']:
pylab.xscale('log')
if params['grid']:
ax_0.xaxis.grid( True, which='both' )
if params['ylog']:
pylab.yscale('log')
if params['grid']:
ax_0.yaxis.grid( True, which='both' )
# grid below bars and boxes
ax_0.set_axisbelow(params['axisbelow'])
def Validation():
numSamples = 1000000
theta = np.random.rand(numSamples)*np.pi
ECo60 = np.array([1.117,1.332])
Ef0,Ee0 = Compton(ECo60[0],theta)
Ef1,Ee1 = Compton(ECo60[1],theta)
dSdE0 = diffXSElectrons(ECo60[0],theta)
dSdE1 = diffXSElectrons(ECo60[1],theta)
# Sampling Values
values = list()
piMax = np.max([dSdE0,dSdE1])
while (len(values) < numSamples):
values.append(SampleRejection(piMax,ComptonScattering))
# Binning the data
bins = np.logspace(-3,0.2,100)
counts = np.histogram(values,bins)
counts = counts[0]/float(len(values))
binCenters = 0.5*(bins[1:]+bins[:-1])
# Plotting
pylab.figure()
pylab.plot(binCenters,counts,ls='steps')
#pylab.bar(binCenters,counts,align='center')
pylab.grid(True)
pylab.xlim((1E-3,1.4))
pylab.xlabel('Electron Energy (MeV)')
pylab.ylabel('Frequency per Photon')
pylab.yscale('log')
pylab.xscale('log')
pylab.savefig('ValComptonScatteringXS.png')
def demo():
import pylab
# The module normalize is not part of the osrefl code base.
from reflectometry.reduction import normalize
from .examples import ng7 as dataset
spec = dataset.spec()[0]
water = WaterIntensity(D2O=20,probe=spec.probe)
spec.apply(normalize())
theory = water.model(spec.Qz,spec.detector.wavelength)
pylab.subplot(211)
pylab.title('Data normalized to water scattering (%g%% D2O)'%water.D2O)
pylab.xlabel('Qz (inv Ang)')
pylab.ylabel('Reflectivity')
pylab.semilogy(spec.Qz,theory,'-',label='expected')
scale = theory[0]/spec.R[0]
pylab.errorbar(spec.Qz,scale*spec.R,scale*spec.dR,fmt='.',label='measured')
spec.apply(water)
pylab.subplot(212)
#pylab.title('Intensity correction factor')
pylab.xlabel('Slit 1 opening (mm)')
pylab.ylabel('Incident intensity')
pylab.yscale('log')
pylab.errorbar(spec.slit1.x,spec.R,spec.dR,fmt='.',label='correction')
pylab.show()
def main(self):
global weights, densities, weighted_densities
plt.figure()
cluster = clusters.SingleStation()
self.station = cluster.stations[0]
R = np.linspace(0, 100, 100)
densities = []
weights = []
for E in np.linspace(1e13, 1e17, 10000):
relative_flux = E ** -2.7
Ne = 10 ** (np.log10(E) - 15 + 4.8)
self.ldf = KascadeLdf(Ne)
min_dens = self.calculate_minimum_density_for_station_at_R(R)
weights.append(relative_flux)
densities.append(min_dens)
weights = np.array(weights)
densities = np.array(densities).T
weighted_densities = (np.sum(weights * densities, axis=1) /
np.sum(weights))
plt.plot(R, weighted_densities)
plt.yscale('log')
plt.ylabel("Min. density [m^{-2}]")
plt.xlabel("Core distance [m]")
plt.axvline(5.77)
plt.show()
def plot_xy(cursor, query, prefix=None, color='b', marker='.', xlog=False, ylog=False, xlabel='', ylabel='', title=''):
"""
Executes the 'query' which should return two numerical columns.
"""
cursor.execute(query)
x_list = []
y_list = []
for row in cursor:
(x, y) = row
if (x != None and y != None):
x_list.append(x)
y_list.append(y)
X = pylab.array(x_list)
Y = pylab.array(y_list)
pylab.figure()
pylab.hold(True)
pylab.plot(X, Y, color=color, marker=marker, linestyle='None')
if (xlog):
pylab.xscale('log')
if (ylog):
pylab.yscale('log')
pylab.title(title + " (R^2 = %.2f)" % pylab.corrcoef(X,Y)[0,1]**2)
pylab.xlabel(xlabel)
pylab.ylabel(ylabel)
if (prefix != None):
pylab.savefig('../res/%s.pdf' % prefix, format='pdf')
pylab.hold(False)
def run_analysis(filename,mode,method):
click.echo('Reading file : %s'%filename)
data = IOfile.parsing_input_file(filename)
click.echo('Creating class...')
theclass = TFC(data)
click.echo('Calculating transfer function using %s method'%method)
if method=='tf_kramer286_sh':
theclass.tf_kramer286_sh()
elif method=='tf_knopoff_sh':
theclass.tf_knopoff_sh()
elif method=='tf_knopoff_sh_adv':
theclass.tf_knopoff_sh_adv()
plt.plot(theclass.freq,np.abs(theclass.tf[0]),label=method)
plt.xlabel('frequency (Hz)')
plt.ylabel('Amplification')
plt.yscale('log')
plt.xscale('log')
plt.grid(True,which='both')
plt.legend(loc='best',fancybox=True,framealpha=0.5)
#plt.axis('tight')
plt.autoscale(True,axis='x',tight=True)
plt.tight_layout()
plt.savefig('test.png', format='png')
click.echo(click.style('Calculation has been finished!',fg='green'))
def show_plot(xlabel, ylabel, xlog=False, ylog=False):
plt.xscale('log') if xlog else None
plt.yscale('log') if ylog else None
plt.xlabel(xlabel)
plt.ylabel(ylabel)
plt.subplot(111).legend()
plt.show()
def get_ac_caracteristique(freq_start, freq_stop, BW, power, resistance, sample = 'sample', membrane = 'membrane'):
index = []
data = []
span = int(1601*BW)
print 'up'
for freq in range(int(freq_start+span/2),int(freq_stop-span/2),span) :
print freq
NA.frequency_center = freq
NA.span = span+40*BW
NA.if_bandwidth = BW
NA.sweep_types.power = power
NA.averaging = True
NA.averaging_factor = 10
time.sleep(float(NA.sweep_time*NA.averaging_factor))
measurements = NA.get_curve()
index = concatenate((index,measurements.data.index[20:-20]))
data = concatenate((data,measurements.data[20:-20]))
final_file = array([index, data]).T.astype(complex)
print final_file
np.savetxt('Ac_caracteristic_'+sample+'_'+membrane+'_start'+str(freq_start)+'_stop'+str(freq_stop)+'_BW'+str(BW)+str(resistance)+'.txt',final_file)
for line in fileinput.FileInput('Ac_caracteristic_'+sample+'_'+membrane+'_start'+str(freq_start)+'_stop'+str(freq_stop)+'_BW'+str(BW)+str(resistance)+'.txt',inplace=1):
line=line.replace("+-","-")
print line,
pylab.close()
pylab.plot(np.abs(index),np.abs(data)**2, color='red',lw=1)
pylab.yscale('log')
pylab.title('Ac_caracteristic_'+sample+'_'+membrane+'_start'+str(freq_start)+'_stop'+str(freq_stop)+'_BW'+str(BW)+str(resistance))
pylab.show()
pylab.savefig('Ac_caracteristic_'+sample+'_'+membrane+'_start'+str(freq_start)+'_stop'+str(freq_stop)+'_BW'+str(BW)+str(resistance)+'.png')
def TestOverStep():
nDim = 10
numOfParticles = 20
maxIteration = 2000
minX = array([-100.0]*nDim)
maxX = array([100.0]*nDim)
maxV = 0.2*(maxX - minX)
minV = -1.0*maxV
numOfTrial = 20
intDim = 5
stopstep = 200
for i in xrange(4):
step = i*3
gBest = array([0.0]*maxIteration)
for i in xrange(numOfTrial):
p1 = AOPSO.PSOProblem(nDim, numOfParticles, maxIteration, minX, maxX, minV, maxV, AOPSO.Rastrigrin,intDim,step, stopstep)
p1.run()
gBest = gBest + p1.gBestArray[:maxIteration]
gBest = gBest / numOfTrial
pylab.plot(range(maxIteration), gBest,label='step='+str(step))
pylab.title('Rastrigrin function, intDim=5 ($G_{best}$ over 20 trials)')
pylab.xlabel('The $N^{th}$ Iteration')
pylab.ylabel('Average gBest over '+str(numOfTrial)+' runs')
pylab.grid(True)
pylab.yscale('log')
ylim = [-6, 1]
ystep = 1.0
# pylab.ylim(ylim[0], ylim[1])
# yticks = linspace(ylim[0], ylim[1], int((ylim[1]-ylim[0])/ystep+1))
# pylab.yticks(tuple(yticks), tuple(map(str,yticks)))
pylab.legend(loc='lower left')
pylab.show()
def test_fit_bb(self):
def func(nu, T):
return np.pi * rf.planck(nu, T, inp="Hz", out="freq")
self.sp.cut_flux(max(self.sp.Flux) * 1e-5)
freq = self.sp.Freq
flux = self.sp.Flux
Tinit = 1.e4
popt, pcov = curve_fit(func, freq, flux, p0=Tinit)
Tbest = popt
# bestT, pcov = curve_fit(rf.fit_planck(nu, inp='Hz'), nu, flux, p0=Tinit, sigma=sigma)
sigmaT = np.sqrt(np.diag(pcov))
print 'True model values'
print ' Tbb = %.2f K' % self.sp.T
print 'Parameters of best-fitting model:'
print ' T = %.2f +/- %.2f K' % (Tbest, sigmaT)
# Tcol = self.sp.temp_color
ybest = np.pi * rf.planck(freq, Tbest, inp="Hz", out="freq")
# plot the solution
plt.plot(freq, flux, 'b*', label='Spectral T: %f' % self.sp.T)
plt.plot(freq, ybest, 'r-', label='Best Tcol: %f' % Tbest)
plt.xscale('log')
plt.yscale('log')
plt.legend(loc=3)
plt.show()
self.assertAlmostEqual(Tbest, self.sp.T,
msg="For planck Tcolor [%f] should be equal sp.T [%f]." % (Tbest, self.sp.T),
delta=Tbest*0.01)
def con(text, stopwords):
alfa = []
content = [w for w in text if w.lower() not in stopwords and w.isalpha()]
fdist = FreqDist(content)
keys = fdist.keys()
vals = fdist.values()
maxiFreq = vals[0]
for i in range(1, maxiFreq + 1):
k = len([w for w in keys if fdist[w] == i])
alfa.append(k)
ys = range(1, maxiFreq + 1)
xs = alfa
pylab.xlabel("Anzahl der Woerter")
pylab.ylabel("Haeufigkeit")
pylab.plot(xs, ys)
pylab.show()
pylab.xlabel("Anzahl der Woerter log scale")
pylab.ylabel("Haeufigkeit log scale")
pylab.plot(xs, ys)
pylab.xscale('log')
pylab.yscale('log')
pylab.show()
return alfa
def save_plot(l, xlabel=None, title=None, filename=None, xticks_labels=None, legend_loc='upper left', bottom_adjust=None, yscale='linear', ymin=0.0, ymax_factor=1.1):
params = {
'backend': 'ps',
#'text.usetex': True,'
'text.latex.unicode': True,
}
pylab.rcParams.update(params)
pylab.figure(1, figsize=(6,4))
pylab.grid(True)
pylab.xlabel(xlabel)
pylab.ylabel(u"čas [s]")
pylab.title(title)
pylab.xlim(0, max(l[0][0][0]) * 1.1)
if xticks_labels is not None:
pylab.xticks(l[0][0][0], xticks_labels, rotation=25, size='small', horizontalalignment='right')
ymax = 0.0
for i in l:
pylab.plot(*i[0], **i[1])
ymax = max(ymax,max(i[0][1]))
pylab.ylim(ymin, ymax * ymax_factor)
if bottom_adjust is not None:
pylab.subplots_adjust(bottom=bottom_adjust)
pylab.yscale(yscale)
pylab.legend(loc=legend_loc)
pylab.savefig(filename, format='eps')
pylab.clf()
def plot_stats(sbstats):
subbands = map(subband_from_stats, sbstats)
flagged = [max(sb['real']['flagged%'],sb['imag']['flagged%']) for sb in sbstats]
astd = [sb['real']['all-std'] for sb in sbstats]
gstd = [sb['real']['good-std'] for sb in sbstats]
clf()
subplot(311)
title('Flagged')
plot(subbands, flagged)
xlabel('Subband number')
subplot(312)
title(r'$\sigma$ all')
plot(subbands, astd)
yscale('log')
xlabel('Subband number')
subplot(313)
title(r'$\sigma$ good')
plot(subbands, gstd)
yscale('log')
xlabel('Subband number')
pass
def makeComp(save=0):
data = Repeatability.getRepeatsData()
dc = data['dc_min']
dv = data['dv']
P.figure()
P.plot( dc, dv, 'k.', alpha=0.4)
P.ylim(0.1, 1e6)
P.xlim(1e-6, 1)
P.xscale('log')
P.yscale('log')
ylim = P.ylim()
P.plot( [1e-2, 1e-2], ylim, 'b--', lw=2)
P.plot( [5e-3, 5e-3], ylim, 'r--', lw=2)
P.plot( [1e-6, 1], [1000, 1000], 'm--', lw=2)
P.xlabel(r'$\Delta \chi^2/dof$')
P.ylabel(r'$\Delta v$ (km/s)')
P.tight_layout()
if save:
P.savefig(Repeatability.directory+'/plots/Repeat_all_rchi2_vel.pdf',\
bbox_inches='tight')
ngals = len(dv)*1.
print 'Total galaxies in plot', ngals
print ' dchi2 < 0.01', N.sum( dc< 0.01), N.sum( dc< 0.01)/ngals
print ' dchi2 < 0.005', N.sum( dc< 0.005), N.sum( dc< 0.005)/ngals
print ' dv > 1000 km/s', N.sum( dv > 1000.), N.sum( dv > 1000.)/ngals
return data
def mesh2d_mcolor_mask(self, data, axis, output=None, mask=None, datscale='log',
axiscale=['log', 'log'], pcolors='Greys', maskcolors=None):
""" >>> generate 2D mesh plot <<<
"""
pl.clf()
fig=pl.figure()
ax=fig.add_subplot(111)
pldat=data
# get the color norm
if(datscale=='log'):
cnorm=colors.LogNorm()
elif(datscale=='linear'):
cnorm=colors.NoNorm()
else:
raise Exception
color1=colors.colorConverter.to_rgba('white')
color2=colors.colorConverter.to_rgba('blue')
color3=colors.colorConverter.to_rgba('yellow')
my_cmap0=colors.LinearSegmentedColormap.from_list('mycmap0',[color1, color1, color2, color2, color2, color3, color3], 512)
my_cmap0._init()
if pcolors!=None:
cm=ax.pcolormesh(axis[0,:], axis[1,:], pldat, cmap=pl.cm.get_cmap(pcolors),
norm=cnorm)
#cm=ax.pcolormesh(axis[0,:], axis[1,:], pldat, cmap=my_cmap0, norm=cnorm)
else:
cm=ax.pcolormesh(axis[0,:], axis[1,:], pldat, norm=cnorm)
if mask!=None:
# get the color map of mask
"""
color1=colors.colorConverter.to_rgba('white')
color2=colors.colorConverter.to_rgba('red')
my_cmap=colors.LinearSegmentedColormap.from_list('mycmap',[color1, color2], 512)
my_cmap._init()
alphas=np.linspace(0.2, 0.7, my_cmap.N+3)
my_cmap._lut[:,-1] = alphas
"""
maskdata=np.ma.masked_where((mask<=1e-2)&(mask>=-1e-2) , mask)
mymap=ax.contourf(axis[0,:], axis[1,:], maskdata, cmap=maskcolors)
cbar=fig.colorbar(mymap, ticks=[4, 6, 8]) #, orientation='horizontal')
cbar.ax.set_yticklabels(['void', 'filament', 'halo'])
pl.xscale(axiscale[0])
pl.yscale(axiscale[1])
return
def plot_tmp_imp( name_plot ):
# distance between axes and ticks
pl.rcParams['xtick.major.pad']='8'
pl.rcParams['ytick.major.pad']='8'
# set latex font
pl.rc('text', usetex=True)
pl.rc('font', **{'family': 'serif', 'serif': ['Computer Modern'], 'size': 20})
# plotting
x_plf = pow(10,pl.linspace(-6,0,1000))
pl.clf()
p_pl, = pl.plot(x_plf,ff_pl(x_plf,par_pl[0],par_pl[1]), ls='--', color='Red')
p_lg, = pl.plot(x_plf,ff_lg(x_plf,par_lg[0],par_lg[1]), ls='-', color='RoyalBlue')
p_points, = pl.plot(df_imp_1d.pi,df_imp_1d.imp,'.', color='Black',ms=10)
pl.xscale('log')
pl.yscale('log')
pl.xlabel('$\phi$')
pl.ylabel('$\mathcal{I}_{tmp}(\Omega=\{ \phi \})$')
pl.grid()
pl.axis([0.00001,1,0.0001,0.1])
leg_1 = '$\hat{Y} = $' + str("%.4f" % round(par_pl[0],4)) + '$\pm$' + str("%.4f" % round(vv_pl[0][0],4)) + ' $\hat{\delta} = $' + str("%.4f" % round(par_pl[1],4)) + '$\pm$' + str("%.4f" % round(vv_pl[1][1],4)) + ' $E_{RMS} = $' + str("%.4f" % round(pl.sqrt(chi_pl/len(df_imp_1d.imp)),4))
leg_2 = '$\hat{a} = $' + str("%.3f" % round(par_lg[0],3)) + '$\pm$' + str("%.3f" % round(vv_lg[0][0],3)) + ' $\hat{b} = $' + str("%.0f" % round(par_lg[1],3)) + '$\pm$' + str("%.0f" % round(vv_lg[1][1],3)) + ' $E_{RMS} = $' + str("%.4f" % round(pl.sqrt(chi_lg/len(df_imp_1d.imp)),4))
l1 = pl.legend([p_pl,p_lg], ['$f(\phi) = Y\phi^{\delta}$', '$g(\phi)= a \log_{10}(1+b\phi)$'], loc=2, prop={'size':15})
l2 = pl.legend([p_pl,p_lg], [leg_1 ,leg_2 ], loc=4, prop={'size':15})
pl.gca().add_artist(l1)
pl.subplots_adjust(bottom=0.15)
pl.subplots_adjust(left=0.17)
pl.savefig("../plot/" + name_plot + ".pdf")
def plot_values(X, Y, xlabel, ylabel, suffix):
output_filename = constants.CHARTS_FOLDER_NAME + constants.DATASET + '_' + suffix
pylab.figure(figsize=(8, 7))
pylab.rcParams.update({'font.size': 20})
pylab.scatter(X, Y)
'''
#smoothing
s = np.square(np.max(Y))
tck = interpolate.splrep(X, Y, s=s)
Y_smooth = interpolate.splev(X, tck)
pylab.plot(X, Y_smooth)
'''
#pylab.axis(vis.get_bounds(X, Y, False, False))
pylab.xscale('log')
pylab.yscale('log')
pylab.xlabel(xlabel)
pylab.ylabel(ylabel)
#pylab.tight_layout()
pylab.savefig(output_filename + '.pdf')
def quartile_plot(
fits,
group_index_start, group_index_end,
model_param_index,
ylim=None,
log=True,
xlabel=None,
ylabel=None,
labels=None):
model_param_values = [
fit_params(fits, group_index, model_param_index)
for group_index in xrange(
group_index_start, group_index_end)
]
fig = plt.figure(figsize=(len(model_param_values), 7))
if log is True:
plt.yscale('log')
if ylim is not None:
plt.ylim(ylim)
if xlabel is not None:
plt.xlabel(xlabel)
if ylabel is not None:
plt.ylabel(ylabel)
plt.boxplot(
model_param_values,
labels=labels,
showmeans=True)
plt.grid()
plt.show()
def plot_fft_brams():
import pylab
run = True
# turn on live updating
pylab.ion()
# plot the power in log scale
pylab.yscale('log')
# get an initial power spectrum and plot the power lines as rectangles
fftscope_power = get_fft_brams_power()
fftscope_power_line=pylab.bar(range(0,numchannels),fftscope_power)
pylab.ylim(1,1000000)
# plot until an interrupt is received
# for i in range(1,10):
while(run):
try:
# read in a new spectrum
fftscope_power = get_fft_brams_power()
# update the rectangles based on the new power spectrum
for j in range(0,numchannels):
fftscope_power_line[j].set_height(fftscope_power[j])
#update the plot
pylab.draw()
except KeyboardInterrupt:
run = False
# after stopping the liveupdate leave the plot up until the user is done with it
raw_input('Press enter to quit: ')
pylab.cla()
plt.xlim([1.e-1, 1e8])
ax3.set_xscale('log')
plt.xlabel("$z$")
plt.ylabel("$\phi$")
ax3.grid(True)
plt.savefig(name + ".pdf")
plt.show()
if False:
ax4 = fig.add_subplot(1, 3, 4)
for i in range(4):
ax4.plot(lna, pts4[i])
plt.xlabel("$\ln a$")
plt.ylabel("$\dot \phi^2$")
pylab.yscale('log')
ax4.grid(True)
ax5 = fig.add_subplot(2, 3, 5)
ax5.plot(lna, T.Pot(xx, 0))
plt.xlabel("$\ln a$")
plt.ylabel("$V(\phi)$")
pylab.yscale('log')
ax5.grid(True)
#ax6=fig.add_subplot(2,3,6)
#ax6.plot(xx, (T.Pot(xx,1)**2/T.Pot(xx,0)/4. - T.Pot(xx,0))*exp(-140)*4.E4*(3/2.36))
#plt.xlim([-35,-30])
#plt.xlabel("$\ln a$")
#plt.ylabel("$V,{\phi}(\phi)$")
#pylab.yscale('log')
#plt.show()
# Log-normal box
smre_k, smre_pk, smre_stddev \
= box.binned_power_spectrum(delta_k=fft.fftn(delta_smoothed))
# Plot some stuff
fig = plt.figure()
plt.plot(th_k, th_pk, 'b-', label="Theoretical P(k)")
#plt.errorbar(re_k, re_pk, yerr=re_stddev, fmt=".", color='r')
plt.errorbar(re_k, re_pk, yerr=re_stddev, marker='.', color='r',
ls='none', label="P(k) from density field")
plt.errorbar(smre_k, smre_pk, yerr=smre_stddev, marker='x', color='g',
ls='none', label="P(k) from smoothed field")
plt.xscale('log')
plt.yscale('log')
plt.legend(loc='lower left', frameon=False)
plt.ylim((1e0, 1e5))
plt.show()
sys.exit(0)
# Log-normal box
delta_ln = box.lognormal(box.delta_x)
lnre_k, lnre_pk, lnre_stddev \
= box.binned_power_spectrum(delta_k=fft.fftn(delta_ln))
plt.matshow(delta_ln[0], vmin=-1., vmax=2., cmap='cividis')
plt.title("Log-normal density")
thBragg = float(Sub.calc_Bragg_angle(Energy).subs(Sub.structure.subs).evalf())
angle = pl.linspace(data[:, 0][0] * np.pi / 180, data[:, 0][-1] * np.pi / 180,
len(data[:, 0]))
XR = crystal.calc_reflectivity(angle, Energy)
crystal.print_values(angle, Energy)
#pl.plot(angle*180/np.pi,abs(layer1.XR)**2)
#pl.plot(angle*180/np.pi,abs(Sub.XR)**2)
pl.plot(data[:, 0], abs(XR)**2)
pl.plot(data[:, 0] + thetaoffset, data[:, 1] * scale, '.')
pl.yscale('log')
pl.show()
def residual(params, angle, data):
strainmax = params['strainmax'].value
straindepth = params['straindepth'].value
scale = params['scale'].value
thetaoffset = params['thetaoffset'].value
c = layer1.strain.keys()[0]
tvector, strain = my_strain_profile(strainmax, straindepth)
layer1.strain[c] = strain
layer1.thickness = tvector
XR = crystal.calc_reflectivity(angle + thetaoffset * np.pi / 180, Energy)
def main():
matlab_path = '/Applications/MATLAB_R2020b.app/bin/matlab'
## THE FOLLOWING FLAGS TO TRUE/FALSE CONTROL WHICH TESTS ARE DONE
do_ibp_tests = True
do_maaipm_tests = True
do_colgen_tests = True
do_comparison_plots = True
# Control which data set to use: 'sparsesquare', 'sparsedisc', 'noisygrid', 'translatedgrid'
test_type = 'sparsesquare'
k_vals = [10]
n_vals = [10]
# Control parameters for IBP vs. MAAIPM method.
ibp_eps_vals = [0.1, 0.01] # Support size gridding for IBP.
ibp_filter_sizes = [1] # the regularization parameter is eta = (1/eps)^2 / (2 * filter_size^2)
maaipm_eps_inv_vals = [10] # eps_inv x eps_inv grid for MAAIPM.
# Plot parameters
y_limits = (1e-10 - 1e-11, 10.0)
x_limits = (0.009,100)
for k in k_vals:
for n in n_vals:
np.random.seed(19238412)
random.seed(12834981)
data_identifier = test_type + '_n' + str(n) + 'k' + str(k)
##########################################################################
## A) Generate the sparse test data
if test_type == 'sparsesquare':
sparse_data = get_sparsesquare_test(k=k,n=n)
elif test_type == 'sparsedisc':
sparse_data = get_sparsedisc_test(k=k,n=n)
elif test_type == 'noisygrid':
sparse_data = get_noisygrid_test(k=k,n=n)
elif test_type == 'translatedgrid':
sparse_data = get_translatedgrid_test(k=k,n=n)
else:
assert(0)
# show_sparse_data(sparse_data)
# And save it for use by IBP and MAAIPM
data_filename = 'comparison_test_files/experiment_data/' + data_identifier
# Save it as gridded images (for IBP):
eps_vals = ibp_eps_vals
for i, eps_val in enumerate(eps_vals):
dense_data = get_dense_data_representation(sparse_data, eps=eps_val, bounding_box=((-1,-1),(1,1)))
eps_desc = str(eps_val).split('.')[1]
dense_data_filename = data_filename + 'eps' + eps_desc
save_dense_data_representation(dense_data, dense_data_filename)
# Save it as a list of points (for MAAIPM):
save_sparse_data_representation(sparse_data, data_filename)
##########################################################################
# B) Run our column generation method, collecting an error plot.
if do_colgen_tests:
filename_colgen = 'comparison_test_files/experiment_results/colgen_results/' + data_identifier + '.txt';
if os.path.exists(filename_colgen):
print('ALREADY EXISTS: ' + filename_colgen)
else:
bary_prob = BarycenterProblem(sparse_data, method='powerdiagram', log_file=filename_colgen)
bary_prob.solve()
########################################################################
## C) Run IBP method, gridding the space.
## 1) Run the IBP code (MATLAB) computing regularized barycenters (different regularizations and epsilons).
if do_ibp_tests:
eps_vals = ibp_eps_vals
filter_sizes = ibp_filter_sizes # the regularization parameter is eta = (1/eps)^2 / (2 * filter_size^2)
for i, eps_val in enumerate(eps_vals):
eps_desc = str(eps_val).split('.')[1]
for filter_size in filter_sizes:
ibp_res_prefix = 'comparison_test_files/experiment_results/ibp_results/' + data_identifier + 'eps' + eps_desc + 'f' + str(filter_size);
ibp_res_file = ibp_res_prefix + '.txt'
if os.path.exists(ibp_res_file):
print('ALREADY EXISTS: ' + ibp_res_file)
continue
time.sleep(0.05)
matlab_command = matlab_path + ' -nodisplay -r "cd(\'comparison_test_files/IBP_code\'); test_barycenters_ibp(' + str(n) + ', ' + str(k) + ',\'' + eps_desc + '\',\'' + test_type + '\',' + str(filter_size) + ',{imgortime:d});exit"';
## i) Assign scores to the IBP barycenters w.r.t. actual point cloud.
## Use the Lemon solver to obtain the exact optimal transport distance between pairs of points.
costs_filename = ibp_res_prefix + '_costs.txt'
costs_lemon = []
if not os.path.exists(costs_filename):
print(matlab_command)
os.system(matlab_command.format(imgortime=1)) # Write the barycenter at each iteration to the disk.
t = 1
while True:
curr_filename = ibp_res_prefix + '/b_' + str(t) + '.png'
if not os.path.exists(curr_filename):
break
if t % 40 == 1 or (t < 80 and t % 10 == 1):
f1 = pylab.imread(curr_filename)
print(f1)
f1 = f1 / np.sum(f1)
sparsedatum_f1 = get_sparse_data_representation([f1], bounding_box=((-1,-1),(1,1)))[0]
print(t)
curr_lemon = 0
for i in range(k):
print(t,i)
curr_lemon += exact_cost_lemon(sparse_data[i], sparsedatum_f1, lemon_solver_location='../lemon_solver/LemonNetworkSimplex') / k
costs_lemon.append(curr_lemon)
else:
costs_lemon.append(-1)
t += 1
costs_file = open(costs_filename, 'w')
for i in range(len(costs_lemon)):
costs_file.write('{v:.9f}\n'.format(v=costs_lemon[i]))
costs_file.close()
else:
print('USING PREVIOUSLY-COMPUTED COSTS FILE: ' + costs_filename)
costs_file = open(costs_filename, 'r')
costs_lemon = costs_file.readlines()
costs_lemon = [float(i) for i in costs_lemon]
costs_file.close()
# ii) Separately re-run the IBP code to get the timing information.
timings_filename = ibp_res_prefix + "_timing.txt";
if not os.path.exists(timings_filename):
os.system(matlab_command.format(imgortime=2)) # Write the cumulative time to each iteration to the disk.
else:
print('USING PREVIOUSLY-COMPUTED TIMINGS FILE: ' + timings_filename)
timings_file = open(timings_filename, 'r')
times = timings_file.readlines()
times = [float(i) for i in times]
timings_file.close()
res_file = open(ibp_res_file, 'w')
assert(len(times) == len(costs_lemon))
for i in range(len(times)):
res_file.write('{v:.9f} {t:.9f}\n'.format(v=costs_lemon[i], t=times[i]));
res_file.close()
##########################################################################
## D) Run MAAIPM method with fixed-support assumption.
if do_maaipm_tests:
for eps_inv in maaipm_eps_inv_vals: # eps_inv x eps_inv-size grid
maaipm_res_file = 'comparison_test_files/experiment_results/ipm_results/' + data_identifier + 'epsinv' + str(eps_inv) + '.txt'
if os.path.exists(maaipm_res_file):
print('ALREADY EXISTS: ' + maaipm_res_file)
continue
time.sleep(0.05)
matlab_command = matlab_path + ' -nodisplay -r "cd(\'comparison_test_files/MAAIPM_code\'); test_barycenters_maaipm_grid_support(' + str(n) + ', ' + str(k) + ',' + str(eps_inv) + ',\'' + test_type + '\');exit"';
os.system(matlab_command)
os.system('mv comparison_test_files/experiment_results/ipm_results/latest_maaipm_results.txt ' + maaipm_res_file)
##############################################################################
## E) Create the comparison plots between the algorithms
if do_comparison_plots:
print('Comparison plots here')
markers = ['x', 'o', 'v', '^', '.']*100
best_val = 10;
last_time = 0;
title_text = '';
legend_names = None;
# Which data to plot.
# Example comparison plot: n = 5, k = 5, sparsesquare.
series = ['colgen_results/sparsesquare_n5k5.txt', 'ipm_results/sparsesquare_n5k5epsinv10.txt', 'ibp_results/sparsesquare_n5k5eps1f1.txt']
legend_names = ['Proposed algorithm', 'MAAIPM 10x10 grid', 'IBP 10 x 10 grid, filter-size 1']
assert(len(k_vals) == 1)
assert(len(n_vals) == 1)
k = k_vals[0]
n = n_vals[0]
test_prefix = test_type + '_n' + str(n) + 'k' + str(k);
title_text = test_type + ', n = ' + str(n) + ', k = ' + str(k)
series = []
legend_names = []
if do_colgen_tests:
series.append('colgen_results/' + test_prefix + '.txt')
legend_names.append('Proposed algorithm')
if do_ibp_tests:
for eps_val in ibp_eps_vals:
eps_desc = str(eps_val).split('.')[1]
for filter_size in ibp_filter_sizes:
series.append('ibp_results/' + test_prefix + 'eps' + eps_desc + 'f' + str(filter_size) + '.txt')
legend_names.append('IBP eps=' + str(eps_val) + ' filter-size=' + str(filter_size))
if do_maaipm_tests:
for eps_inv in maaipm_eps_inv_vals:
series.append('ipm_results/' + test_prefix + 'epsinv' + str(eps_inv) + '.txt')
legend_names.append('IPM epsinv=' + str(eps_inv))
# series = ['colgen_results/sparsesquare_n25k10.txt', 'ibp_results/sparsesquare_n25k10eps1f1.txt', 'ibp_results/sparsesquare_n25k10eps1f2.txt', 'ibp_results/sparsesquare_n25k10eps05f1.txt', 'ibp_results/sparsesquare_n25k10eps05f2.txt']
# series = ['colgen_results/sparsesquare_n25k10.txt', 'ipm_results/sparsesquare_n25k10epsinv10.txt', 'ipm_results/sparsesquare_n25k10epsinv30.txt', 'ipm_results/sparsesquare_n25k10epsinv70.txt']
## # IPM plot: n = 20, k = 20, noisygrid.
## series = ['colgen_results/noisygrid_n20k10.txt', 'ipm_results/noisygrid_n20k10epsinv10.txt', 'ipm_results/noisygrid_n20k10epsinv30.txt', 'ipm_results/noisygrid_n20k10epsinv50.txt']
## # IBP plot: n = 20, k = 20, sparsesquare.
## series = ['colgen_results/sparsesquare_n20k10.txt', 'ibp_results/sparsesquare_n20k10eps04f1.06.txt', 'ibp_results/sparsesquare_n20k10eps01f7.txt', 'ibp_results/sparsesquare_n20k10eps004f12.txt']
## legend_names = ['Proposed algorithm', 'IBP 25x25 grid, $\eta=100$', 'IBP 100x100 grid, $\eta=100$', 'IBP 250x250 grid, $\eta=200$']
## title_text = 'Comparison with IBP'
# # IPM plot: n = 20, k = 20, sparsesquare.
# series = ['colgen_results/sparsesquare_n20k10.txt', 'ipm_results/sparsesquare_n20k10epsinv10.txt', 'ipm_results/sparsesquare_n20k10epsinv40.txt', 'ipm_results/sparsesquare_n20k10epsinv70.txt']
# legend_names = ['Proposed algorithm', 'MAAIPM 10x10 grid', 'MAAIPM 40x40 grid', 'MAAIPM 70x70 grid']
# title_text = 'Comparison with MAAIPM'
# # Comparison plot: n = 5, k = 5, sparsesquare.
# series = ['colgen_results/sparsesquare_n5k5.txt', 'ipm_results/sparsesquare_n5k5epsinv10.txt', 'ibp_results/sparsesquare_n5k5eps1f1.txt']
# legend_names = ['Proposed algorithm', 'MAAIPM 10x10 grid', 'IBP 10 x 10 grid, filter-size 1']
# title_text = 'Example comparison with MAAIPM and IBP'
if legend_names is None:
legend_names = series
val_data = []
time_data = []
# Sanitize data (remove places where cost was not computed.)
for i in range(len(series)):
temp_vals, temp_times = read_val_time_file('comparison_test_files/experiment_results/' + series[i])
vals = []
times = []
for j in range(len(temp_vals)):
if temp_vals[j] >= 0:
vals.append(temp_vals[j])
times.append(temp_times[j])
val_data.append(vals)
time_data.append(times)
for i, serie in enumerate(series):
vals = val_data[i]
times = time_data[i]
best_val = min(best_val, np.min(vals)) # Provided that column generation is one of the methods run, best_val will be the true optimum for the problem.
last_time = max(last_time, np.max(times))
pylab.figure(figsize=(12,8))
for i, serie in enumerate(series):
vals = val_data[i]
times = time_data[i]
vals.append(vals[-1])
times.append(last_time)
pylab.plot(times, vals-best_val + 1e-18, marker=markers[i], label=legend_names[i], linewidth=3.0)
pylab.ylim(y_limits)
pylab.xlim(x_limits)
pylab.yscale('log')
pylab.xscale('log')
font = {'family' : 'sans-serif',
'size' : 30}
pylab.rc('font', **font)
pylab.rcParams['text.usetex'] = True
ax = pylab.gca();
ax.set_ylabel('Suboptimality gap')
ax.set_xlabel('Time (seconds)')
ax.set_title(title_text)
for item in ([ax.xaxis.label, ax.yaxis.label] +
ax.get_xticklabels() + ax.get_yticklabels()):
item.set_fontsize(30)
item.set_usetex(True)
ax.title.set_fontsize(40)
ax.title.set_usetex(True)
pylab.legend()
pylab.show()
plt.plot([n['count_packets_good'] for n in nodestats],
'.-',
label='packets: good')
plt.plot([n['count_packets_bad'] for n in nodestats],
'.-',
label='packets: bad')
plt.plot([n['count_packets_dropped'] for n in nodestats],
'.-',
label='packets: dropped')
plt.plot([n['count_beam_id_mismatch'] for n in nodestats],
'.-',
label='beam id mismatch')
plt.xlabel('L1 node number')
plt.xticks(np.arange(n_l1_nodes))
plt.legend(fontsize=8)
plt.yscale('symlog')
plt.savefig('counts.png')
print('Sending write_chunks requests...')
for socket in sockets:
beams = [0, 1, 2]
minchunk = 0
maxchunk = 5
filename_pat = 'chunk-beam(BEAM)-fpga(FPGA0)+(FPGAN)-py.msgpack'
msg = (msgpack.packb(['write_chunks', token]) +
msgpack.packb([beams, minchunk, maxchunk, filename_pat]))
socket.send(msg)
print('Waiting for write_chunks replies...')
for socket in sockets:
hdr, msg = socket.recv_multipart()
print('Received reply: %i bytes' % len(msg))
def eval_gwas(pv, i_causal, out_fn=None, plot=False):
"""
"""
pv_thresholds = [1e-3, 5e-4, 1e-4, 5e-5, 1e-5, 5e-6, 1e-6, 5e-7, 1e-7, 5e-8, 1e-8]
# compute lambda on all p-values?
#lambda_gc = estimate_lambda(p_values)
lambda_gc = estimate_lambda(pv)
n_causal = i_causal.sum()
#compute power and Type-1 error
power = np.zeros_like(pv_thresholds)
t1err = np.zeros_like(pv_thresholds)
power_corr = np.zeros_like(pv_thresholds)
t1err_corr = np.zeros_like(pv_thresholds)
pvcorr = stats.chi2.sf(stats.chi2.isf(pv,1)/lambda_gc,1)
for i_t, t in enumerate(pv_thresholds):
#compute uncorrected power and T1
i_lower = pv<t
power[i_t] = i_causal[i_lower].sum()/(1.0*(n_causal))
t1err[i_t] = (~i_causal[i_lower]).sum()/(1.0*(len(i_causal)-n_causal))
#compute GC corrected Power and T1
i_lower_corr = pvcorr<t
power_corr[i_t] = i_causal[i_lower_corr].sum()/(1.0*(n_causal))
t1err_corr[i_t] = (~i_causal[i_lower_corr]).sum()/(1.0*(len(i_causal)-n_causal))
if plot == True:
import pylab
pylab.figure()
pylab.title("lambda_gc=%f" % lambda_gc)
pylab.plot(pv_thresholds, power, "-o")
pylab.yscale("log")
pylab.xscale("log")
pylab.xlabel("pv threshold")
pylab.ylabel("power")
pylab.grid(True)
pylab.plot(pv_thresholds, power_corr, "-o")
if not out_fn is None:
pow_fn = out_fn.replace(".pickle", "_pow.pdf")
pylab.savefig(pow_fn)
else:
pylab.show()
pylab.figure()
pylab.title("lambda_gc=%f" % lambda_gc)
pylab.plot(pv_thresholds, t1err, "-o", label="t1err")
pylab.plot(pv_thresholds, t1err_corr, "-o", label="t1err_gc")
pylab.yscale("log")
pylab.xscale("log")
pylab.xlabel("pv threshold")
pylab.ylabel("t1err")
pylab.grid(True)
pylab.plot(pv_thresholds, pv_thresholds, "-", label="thres")
pylab.legend(loc="upper left")
if not out_fn is None:
t1err_fn = out_fn.replace(".pickle", "_t1err.pdf")
pylab.savefig(t1err_fn)
else:
pylab.show()
# plot auROC
if out_fn is None:
roc_fn = None
else:
roc_fn = out_fn.replace(".pickle", "_roc.pdf")
plot_roc(i_causal, -pv, label='lambda_gc=%0.4f' % (lambda_gc), out_fn=roc_fn)
# plot auPRC
if out_fn is None:
prc_fn = None
else:
prc_fn = out_fn.replace(".pickle", "_prc.pdf")
plot_prc(i_causal, -pv, label='lambda_gc=%0.4f' % (lambda_gc), out_fn=prc_fn)
# wrap up metrics
res = {}
res["lambda"] = lambda_gc
res["pv_thresholds"] = pv_thresholds
res["power"] = power
res["power_corr"] = power_corr
res["t1err"] = t1err
res["t1err_corr"] = t1err_corr
return res
def f_1(x):
return x**5 / 5 - x**2 + x
def integral(f, N, a, b):
h = (b - a) / N
result = 0.5 * f(a) + 0.5 * f(b)
for k in range(1, N):
result += f(a + k * h)
result = h * result
return result
area_exact = f_1(1) - f_1(0)
N = []
deltas = []
for n in range(1, 1000):
N.append(n)
area_trapezoidal = integral(f, n, 0, 1)
delta = np.abs(area_trapezoidal - area_exact) / area_exact
deltas.append(delta)
pl.plot(N, deltas)
pl.title("Error development of trapezoidal integration method")
pl.xlabel("Number of trapezoidal slices")
pl.ylabel("Error")
pl.yscale("log")
pl.show()
def PlotStatsForParam(config, param_name):
"""
@brief Save plots for the results of reconvolution_validation, when param_name is varied.
@param config galsim yaml config, which was used to produce the results, read by yaml
@param param_name varied parameter name, listed under config['vary_params'], for which
to create the plots
"""
# get the shortcut to the dict corresponding to current varied parameter
param = config['vary_params'][param_name]
# prepare the output dict and initialise lists
bias_list = {
'm1': [],
'm2': [],
'c1': [],
'c2': [],
'm1_std': [],
'm2_std': [],
'c1_std': [],
'c2_std': []
}
bias_moments_list = copy.deepcopy(bias_list)
bias_hsmcorr_list = copy.deepcopy(bias_list)
# loop over values changed for the varied parameter
for iv, value in enumerate(param['values']):
# get the filename for the results file
filename_results_direct = 'results.%s.%s.%03d.direct.cat' % (
config['filename_config'], param_name, iv)
filename_results_reconv = 'results.%s.%s.%03d.reconv.cat' % (
config['filename_config'], param_name, iv)
# get the path for the results files
filepath_results_reconv = os.path.join(config['results_dir'],
filename_results_reconv)
filepath_results_direct = os.path.join(config['results_dir'],
filename_results_direct)
logging.info('parameter %s, index %03d, value %2.4e' %
(param_name, iv, float(value)))
# if there is no .reconv or .direct file, look for the default to compare it against
if not os.path.isfile(filepath_results_direct):
logging.info('file %s not found, looking for defaults' %
filepath_results_direct)
filename_results_direct = 'results.%s.default.direct.cat' % (
config['filepath_config'])
filepath_results_direct = os.path.join(config['results_dir'],
filename_results_direct)
if not os.path.isfile(filepath_results_direct):
raise NameError('file %s not found' % filepath_results_direct)
if not os.path.isfile(filepath_results_reconv):
logging.info('file %s not found, looking for defaults' %
filepath_results_reconv)
filename_results_reconv = 'results.%s.default.reconv.cat' % (
config['filepath_config'])
filepath_results_reconv = os.path.join(config['results_dir'],
filename_results_reconv)
if not os.path.isfile(filepath_results_reconv):
raise NameError('file %s not found' % filepath_results_reconv)
# measure m and c biases
bias_moments, bias_hsmcorr = GetBias(config, filepath_results_direct,
filepath_results_reconv)
logging.info('bias_moments has %d points ' % len(bias_moments))
# append results lists - slightly clunky way
bias_moments_list[iv] = bias_moments
bias_hsmcorr_list[iv] = bias_hsmcorr
# yaml is bad at converting lists of floats in scientific notation to floats
values_float = map(float, param['values'])
# get the tick labels
values_float_ticklabels = map(str, values_float)
# if very large value is used, put it closer to other points
for ivf, vf in enumerate(values_float):
if vf > 1e10:
values_float_ticklabels[ivf] = str(vf)
values_float_sorted = sorted(values_float)
values_float[ivf] = values_float_sorted[-2] * 10
# set some plot parameters
fig_xsize, fig_ysize, legend_ncol, legend_loc = 12, 10, 2, 3
# plot figures for moments
pylab.figure(1, figsize=(fig_xsize, fig_ysize))
pylab.title('Weighted moments - uncorrected')
pylab.xscale('log')
# add the scattered m values to plot
for iv, value in enumerate(param['values']):
m1 = [b['m1'] for b in bias_moments_list[iv]]
# m2 = [b['m2'] for b in bias_moments_list[iv]]
print any(numpy.isnan(m1))
pylab.plot(numpy.ones([len(m1)]) * values_float[iv], m1, 'x')
pylab.errorbar(values_float[iv],
numpy.mean(m1),
yerr=numpy.std(m1, ddof=1),
fmt='o',
capsize=30)
# pylab.plot(numpy.ones([len(m2)])*values_float[iv],m2,'o')
print values_float
print values_float_ticklabels
pylab.xticks(values_float, values_float_ticklabels)
pylab.yscale('symlog', linthreshy=1e-2)
pylab.ylabel('m1')
pylab.xlabel(param_name)
pylab.xlim([min(values_float) * 0.5, max(values_float) * 1.5])
pylab.legend(ncol=legend_ncol, loc=legend_loc, mode="expand")
filename_fig = 'fig.moments.%s.%s.png' % (config['filename_config'],
param_name)
pylab.savefig(filename_fig)
pylab.close()
logging.info('saved figure %s' % filename_fig)
# plot for HSM
pylab.figure(2, figsize=(fig_xsize, fig_ysize))
pylab.title('Weighted moments - corrected')
pylab.xscale('log')
pylab.yscale('symlog', linthreshy=1e-3)
for iv, value in enumerate(param['values']):
m1 = [b['m1'] for b in bias_hsmcorr_list[iv]]
# m2 = [b['m2'] for b in bias_moments_list[iv]]
pylab.plot(numpy.ones([len(m1)]) * values_float[iv], m1, 'x')
pylab.errorbar(values_float[iv],
numpy.mean(m1),
yerr=numpy.std(m1, ddof=1),
fmt='o',
capsize=30)
# pylab.plot(numpy.ones([len(m2)])*values_float[iv],m2,'o')
pylab.ylabel('m1')
pylab.xlabel(param_name)
pylab.xlim([min(values_float) * 0.5, max(values_float) * 1.5])
pylab.legend(ncol=legend_ncol, loc=legend_loc, mode="expand")
filename_fig = 'fig.hsmcorr.%s.%s.png' % (config['filename_config'],
param_name)
pylab.savefig(filename_fig)
pylab.close()
logging.info('saved figure %s' % filename_fig)
# now plot the log std of m1 as a function of parameter
for iv, value in enumerate(param['values']):
m1 = [b['m1'] for b in bias_moments_list[iv]]
pylab.plot(values_float[iv], numpy.std(m1, ddof=1), 'x')
pylab.ylabel('std(m_1)', interpreter='latex')
pylab.xlabel(param_name)
pylab.xlim([min(values_float) * 0.5, max(values_float) * 1.5])
# pylab.legend(ncol=legend_ncol,loc=legend_loc,mode="expand")
filename_fig = 'fig.moments.stdm1.%s.%s.png' % (config['filename_config'],
param_name)
pylab.savefig(filename_fig)
pylab.close()
logging.info('saved figure %s' % filename_fig)
def stage_fitplots(T=None,
coimgs=None,
cons=None,
cat=None,
targetrd=None,
pixscale=None,
targetwcs=None,
W=None,
H=None,
bands=None,
ps=None,
brickid=None,
plots=False,
plots2=False,
tims=None,
tractor=None,
pipe=None,
outdir=None,
**kwargs):
for tim in tims:
print 'Tim', tim, 'PSF', tim.getPsf()
writeModels = False
if pipe:
t0 = Time()
# Produce per-band coadds, for plots
coimgs, cons = compute_coadds(tims, bands, targetwcs)
print 'Coadds:', Time() - t0
plt.figure(figsize=(10, 10.5))
#plt.subplots_adjust(left=0.002, right=0.998, bottom=0.002, top=0.998)
plt.subplots_adjust(left=0.002, right=0.998, bottom=0.002, top=0.95)
plt.clf()
dimshow(get_rgb(coimgs, bands))
plt.title('Image')
ps.savefig()
ax = plt.axis()
cat = tractor.getCatalog()
for i, src in enumerate(cat):
rd = src.getPosition()
ok, x, y = targetwcs.radec2pixelxy(rd.ra, rd.dec)
cc = (0, 1, 0)
if isinstance(src, PointSource):
plt.plot(x - 1, y - 1, '+', color=cc, ms=10, mew=1.5)
else:
plt.plot(x - 1, y - 1, 'o', mec=cc, mfc='none', ms=10, mew=1.5)
# plt.text(x, y, '%i' % i, color=cc, ha='center', va='bottom')
plt.axis(ax)
ps.savefig()
mnmx = -5, 300
arcsinha = dict(mnmx=mnmx, arcsinh=1)
# After plot
rgbmod = []
rgbmod2 = []
rgbresids = []
rgbchisqs = []
chibins = np.linspace(-10., 10., 200)
chihist = [np.zeros(len(chibins) - 1, int) for band in bands]
wcsW = targetwcs.get_width()
wcsH = targetwcs.get_height()
print 'Target WCS shape', wcsW, wcsH
t0 = Time()
mods = _map(_get_mod, [(tim, cat) for tim in tims])
print 'Getting model images:', Time() - t0
orig_wcsxy0 = [tim.wcs.getX0Y0() for tim in tims]
for iband, band in enumerate(bands):
coimg = coimgs[iband]
comod = np.zeros((wcsH, wcsW), np.float32)
comod2 = np.zeros((wcsH, wcsW), np.float32)
cochi2 = np.zeros((wcsH, wcsW), np.float32)
for itim, (tim, mod) in enumerate(zip(tims, mods)):
if tim.band != band:
continue
#mod = tractor.getModelImage(tim)
if plots2:
plt.clf()
dimshow(tim.getImage(), **tim.ima)
plt.title(tim.name)
ps.savefig()
plt.clf()
dimshow(mod, **tim.ima)
plt.title(tim.name)
ps.savefig()
plt.clf()
dimshow((tim.getImage() - mod) * tim.getInvError(), **imchi)
plt.title(tim.name)
ps.savefig()
R = tim_get_resamp(tim, targetwcs)
if R is None:
continue
(Yo, Xo, Yi, Xi) = R
comod[Yo, Xo] += mod[Yi, Xi]
ie = tim.getInvError()
noise = np.random.normal(size=ie.shape) / ie
noise[ie == 0] = 0.
comod2[Yo, Xo] += mod[Yi, Xi] + noise[Yi, Xi]
chi = ((tim.getImage()[Yi, Xi] - mod[Yi, Xi]) *
tim.getInvError()[Yi, Xi])
cochi2[Yo, Xo] += chi**2
chi = chi[chi != 0.]
hh, xe = np.histogram(np.clip(chi, -10, 10).ravel(), bins=chibins)
chihist[iband] += hh
if not writeModels:
continue
im = tim.imobj
fn = 'image-b%06i-%s-%s.fits' % (brickid, band, im.name)
wcsfn = create_temp()
wcs = tim.getWcs().wcs
x0, y0 = orig_wcsxy0[itim]
h, w = tim.shape
subwcs = wcs.get_subimage(int(x0), int(y0), w, h)
subwcs.write_to(wcsfn)
primhdr = fitsio.FITSHDR()
primhdr.add_record(
dict(name='X0', value=x0, comment='Pixel origin of subimage'))
primhdr.add_record(
dict(name='Y0', value=y0, comment='Pixel origin of subimage'))
xfn = im.wcsfn.replace(decals_dir + '/', '')
primhdr.add_record(dict(name='WCS_FILE', value=xfn))
xfn = im.psffn.replace(decals_dir + '/', '')
primhdr.add_record(dict(name='PSF_FILE', value=xfn))
primhdr.add_record(dict(name='INHERIT', value=True))
imhdr = fitsio.read_header(wcsfn)
imhdr.add_record(
dict(name='EXTTYPE',
value='IMAGE',
comment='This HDU contains image data'))
ivhdr = fitsio.read_header(wcsfn)
ivhdr.add_record(
dict(name='EXTTYPE',
value='INVVAR',
comment='This HDU contains an inverse-variance map'))
fits = fitsio.FITS(fn, 'rw', clobber=True)
tim.toFits(fits,
primheader=primhdr,
imageheader=imhdr,
invvarheader=ivhdr)
imhdr.add_record(
dict(name='EXTTYPE',
value='MODEL',
comment='This HDU contains a Tractor model image'))
fits.write(mod, header=imhdr)
print 'Wrote image and model to', fn
comod /= np.maximum(cons[iband], 1)
comod2 /= np.maximum(cons[iband], 1)
rgbmod.append(comod)
rgbmod2.append(comod2)
resid = coimg - comod
resid[cons[iband] == 0] = np.nan
rgbresids.append(resid)
rgbchisqs.append(cochi2)
# Plug the WCS header cards into these images
wcsfn = create_temp()
targetwcs.write_to(wcsfn)
hdr = fitsio.read_header(wcsfn)
os.remove(wcsfn)
if outdir is None:
outdir = '.'
wa = dict(clobber=True, header=hdr)
for name, img in [('image', coimg), ('model', comod), ('resid', resid),
('chi2', cochi2)]:
fn = os.path.join(outdir,
'%s-coadd-%06i-%s.fits' % (name, brickid, band))
fitsio.write(fn, img, **wa)
print 'Wrote', fn
del cons
plt.clf()
dimshow(get_rgb(rgbmod, bands))
plt.title('Model')
ps.savefig()
plt.clf()
dimshow(get_rgb(rgbmod2, bands))
plt.title('Model + Noise')
ps.savefig()
plt.clf()
dimshow(get_rgb(rgbresids, bands))
plt.title('Residuals')
ps.savefig()
plt.clf()
dimshow(get_rgb(rgbresids, bands, mnmx=(-30, 30)))
plt.title('Residuals (2)')
ps.savefig()
plt.clf()
dimshow(get_rgb(coimgs, bands, **arcsinha))
plt.title('Image (stretched)')
ps.savefig()
plt.clf()
dimshow(get_rgb(rgbmod2, bands, **arcsinha))
plt.title('Model + Noise (stretched)')
ps.savefig()
del coimgs
del rgbresids
del rgbmod
del rgbmod2
plt.clf()
g, r, z = rgbchisqs
im = np.log10(np.dstack((z, r, g)))
mn, mx = 0, im.max()
dimshow(np.clip((im - mn) / (mx - mn), 0., 1.))
plt.title('Chi-squared')
ps.savefig()
plt.clf()
xx = np.repeat(chibins, 2)[1:-1]
for y, cc in zip(chihist, 'grm'):
plt.plot(xx, np.repeat(np.maximum(0.1, y), 2), '-', color=cc)
plt.xlabel('Chi')
plt.yticks([])
plt.axvline(0., color='k', alpha=0.25)
ps.savefig()
plt.yscale('log')
mx = np.max([max(y) for y in chihist])
plt.ylim(1, mx * 1.05)
ps.savefig()
return dict(tims=tims)
color='gold',
label='JADE')
scatter(planilha['Pluto']['x'],
planilha['Pluto']['y'],
color='red',
label='PLUTO')
scatter(planilha['Tasso']['x'],
planilha['Tasso']['y'],
color='lime',
label='TASSO')
scatter(planilha['MarkJ']['x'],
planilha['MarkJ']['y'],
color='violet',
label='MARK-J')
yscale('log')
grid(True, linestyle='--')
legend()
xlabel('$\sqrt{s}$ (GeV)', fontsize=20)
ylabel('$\sigma$ (pb)', fontsize=20)
show()
# Parte 2 --------------------------------------------------------------------------------
barber = read_csv('barber.csv')
y = (10**(-3)) * (4 * pi * hc2 * alpha2 / 3) * (x**(-2))
plot(x, y, color='navy', label='Previsão do Modelo')
errorbar(barber['x'],
# import libraries
import numpy, pylab
from pylab import *
# plot DOF convergence graph
pylab.yscale("log")
pylab.title("Error convergence")
pylab.xlabel("Degrees of freedom")
pylab.ylabel("Error [%]")
axis('equal')
data = numpy.loadtxt("conv_dof_exact.dat")
x = data[:, 0]
y = data[:, 1]
loglog(x, y, '-s', label="error (exact)")
data = numpy.loadtxt("conv_dof_est.dat")
x = data[:, 0]
y = data[:, 1]
loglog(x, y, '-s', label="error (est)")
legend()
# initialize new window
pylab.figure()
# plot CPU convergence graph
pylab.yscale("log")
pylab.title("Error convergence")
pylab.xlabel("CPU time (s)")
pylab.ylabel("Error [%]")
axis('equal')
data = numpy.loadtxt("conv_cpu_exact.dat")
x = data[:, 0]
# Plot best-fit result (radio)
P.subplot(121)
P.plot(L_radio, radio_lumfn(L_radio, pcur), 'r-', lw=1.8)
P.plot(L_radio, radio_lumfn(L_radio, p0), 'b-', lw=1.8)
# Symmetrise radio errors
logerr_radio = 0.5 * (np.abs(errp_radio) + np.abs(errm_radio))
err_radio = Phi_radio * (10.**logerr_radio - 1.)
P.errorbar(L_radio,
Phi_radio,
yerr=err_radio,
color='k',
marker='.',
ls='none')
#P.errorbar(L_data, phi_data, yerr=[errp, np.abs(errm)], color='k', marker='.')
P.yscale('log')
P.xscale('log')
# Plot best-fit result (optical)
P.subplot(122)
P.plot(mag_gama, optical_lumfn(mag_gama, BAND, pcur), 'r-', lw=1.8)
P.plot(mag_gama, optical_lumfn(mag_gama, BAND, p0), 'b-', lw=1.8)
P.errorbar(mag_gama, Phi_gama, yerr=err_gama, color='k', marker='.', ls='none')
P.gca().invert_xaxis()
#P.errorbar(L_data, phi_data, yerr=[errp, np.abs(errm)], color='k', marker='.')
P.yscale('log')
#P.xscale('log')
P.tight_layout()
P.show()
def _data_plot(models, X, Y, **kwargs):
with_legend = False
use = [0, 0, 0]
if isinstance(X, basestring): X = [X, None]
if isinstance(Y, basestring): Y = [Y, None]
x_prop, x_units = X
y_prop, y_units = Y
ret_list = []
every = kwargs.pop('every', 1)
upto = kwargs.pop('upto', len(models))
mark_images = kwargs.pop('mark_images', True)
hilite_model = kwargs.pop('hilite_model', None)
hilite_color = kwargs.pop('hilite_color', 'm')
yscale = kwargs.pop('yscale', 'log')
xscale = kwargs.pop('xscale', 'linear')
xlabel = kwargs.pop('xlabel', None)
ylabel = kwargs.pop('ylabel', None)
kwargs.setdefault('color', 'k')
kwargs.setdefault('marker', '.')
kwargs.setdefault('ls', '-')
normal_kw = {'zorder': 0, 'drawstyle': 'steps', 'alpha': 1.0}
hilite_kw = {
'zorder': 1000,
'drawstyle': 'steps',
'alpha': 1.0,
'lw': 4,
'ls': '--'
}
accepted_kw = {'zorder': 500, 'drawstyle': 'steps', 'alpha': 0.5}
normal = []
hilite = []
accepted = []
#imgs = set()
imgs = defaultdict(set)
xmin, xmax = np.inf, -np.inf
ymin, ymax = np.inf, -np.inf
objplot = defaultdict(dict)
for mi in xrange(0, upto, every):
m = models[mi]
si = m.get('accepted', 2)
tag = ''
if si == False: tag = 'rejected'
if si == True: tag = 'accepted'
for [obj, data] in m['obj,data']:
try:
xs = data[x_prop][x_units]
ys = data[y_prop][y_units]
xlabel = _axis_label(xs, x_units) if not xlabel else None
ylabel = _axis_label(ys, y_units) if not ylabel else None
objplot[obj].setdefault(tag, {'ys': [], 'xs': None})
objplot[obj][tag]['ys'].append(ys)
objplot[obj][tag]['xs'] = xs
#objplot[obj].setdefault('%s:xs'%tag, xs)
#objplot[obj].setdefault('%s:ymax'%tag, ys)
#objplot[obj].setdefault('%s:ymin'%tag, ys)
#objplot[obj].setdefault('%s:ysum'%tag, np.zeros_like(ys))
#objplot[obj].setdefault('%s:count'%tag, 0)
#objplot[obj]['%s:ymax'%tag] = np.amax((objplot[obj]['%s:ymax'%tag], ys), axis=0)
#objplot[obj]['%s:ymin'%tag] = np.amin((objplot[obj]['%s:ymin'%tag], ys), axis=0)
#objplot[obj]['%s:ysum'%tag] += ys
#objplot[obj]['%s:count'%tag] += 1
if mark_images:
for i, src in enumerate(obj.sources):
for img in src.images:
imgs[i].add(
convert('arcsec to %s' % x_units,
np.abs(img.pos), obj.dL, data['nu']))
except KeyError as bad_key:
Log("Missing information for object %s with key %s. Skipping plot."
% (obj.name, bad_key))
continue
use[si] = 1
s = _styles[si]
#xmin, xmax = min(xmin, amin(data[X])), max(xmax, amax(data[X]))
#ymin, ymax = min(ymin, amin(data[Y])), max(ymax, amax(data[Y]))
for i, tag in enumerate(['rejected', 'accepted', '']):
for k, v in objplot.iteritems():
if tag not in v: break
ys = np.array(v[tag]['ys'])
xs = np.repeat(np.atleast_2d(v[tag]['xs']), len(ys), axis=0)
ret_list.append([xs, ys])
if tag == 'rejected':
pl.plot(xs, ys, c=_styles[0]['c'], zorder=_styles[0]['z'])
else:
pl.plot(xs.T, ys.T, **kwargs)
# return
pl.yscale(yscale)
pl.xscale(xscale)
si = style_iterator()
for k, v in imgs.iteritems():
lw, ls, c = si.next()
for img_pos in v:
pl.axvline(img_pos, c=c, ls=ls, lw=lw, zorder=-2, alpha=0.5)
# if use[0] or use[1]:
# lines = [s['line'] for s,u in zip(_styles, use) if u]
# labels = [s['label'] for s,u in zip(_styles, use) if u]
# pl.legend(lines, labels)
if use[0]:
lines = [_styles[0]['line']]
labels = [_styles[0]['label']]
pl.legend(lines, labels)
#axis('scaled')
if xlabel: pl.xlabel(xlabel)
if ylabel: pl.ylabel(ylabel)
pl.xlim(xmin=pl.xlim()[0] - 0.01 * (pl.xlim()[1] - pl.xlim()[0]))
#pl.ylim(0, ymax)
return ret_list
########################################################################################################################
cancer = load_breast_cancer()
X_train, X_test, y_train, y_test = train_test_split(cancer.data,
cancer.target,
random_state=0)
svc = SVC()
svc.fit(X_train, y_train)
print("Accuracy on training set: {:.2f}".format(svc.score(X_train, y_train)))
print("Accuracy on test set: {:.2f}".format(svc.score(X_test, y_test)))
plt.boxplot(X_train, manage_xticks=False)
plt.yscale("symlog")
plt.xlabel("Feature index")
plt.ylabel("Feature magnitude")
# Compute the minimum value per feature on the training set
min_on_training = X_train.min(axis=0)
# Compute the range of each feature (max - min) on the training set
range_on_training = (X_train - min_on_training).max(axis=0)
# subtract the min, divide by range
# afterward, min=0 and max=1 for each feature
X_train_scaled = (X_train - min_on_training) / range_on_training
print("Minimum for each feature\n{}".format(X_train_scaled.min(axis=0)))
print("Maximum for each feature\n {}".format(X_train_scaled.max(axis=0)))
# use THE SAME transformation on the test set,
def tikhonov_result_out(W, lc, M, folder_name):
if not os.path.isdir(folder_name):
os.mkdir(folder_name)
mprior = np.zeros(M) #prior
lamb = 0.1 # regularization parameter
start = time.time()
U, S, VT = np.linalg.svd(W)
elapsed_time = time.time() - start
logger.info("elapsed_time (SVD):%f [sec]", elapsed_time)
nlcurve = 30
lmin = 0.1
lmax = 100.0
lamseq = np.logspace(np.log10(lmin), np.log10(lmax), num=nlcurve)
modelnormseq = []
residualseq = []
curveseq = []
for lamb in lamseq:
mest, dpre, residual, modelnorm, curv_lcurve = tikhonov_regularization(
W, lc, mprior, U, VT, S, lamb)
modelnormseq.append(modelnorm)
residualseq.append(residual)
curveseq.append(curv_lcurve)
logger.debug("lambda:%f, curv_lcurve: %f", lamb, curv_lcurve)
residualseq = np.array(residualseq)
modelnormseq = np.array(modelnormseq)
imax = np.argmax(curveseq)
lamb = lamseq[imax]
logger.info("Best lambda:%f", lamb)
#define small and large lambda cases
ismall = imax - 7
if ismall < 0:
ismall = 0
ilarge = imax + 9
if ilarge > len(residualseq) - 1:
ilarge = len(residualseq) - 1
#plot a L-curve
fig = plt.figure(figsize=(10, 3))
ax = fig.add_subplot(121)
pylab.xscale('log')
pylab.yscale('log')
pylab.ylabel("Norm of Model", fontsize=12)
pylab.xlabel("Norm of Prediction Error", fontsize=12)
ax.plot(residualseq, modelnormseq, marker=".", c="gray")
ax.plot([residualseq[imax]], [modelnormseq[imax]], marker="o", c="green")
ax.plot([residualseq[ismall]], [modelnormseq[ismall]], marker="s", c="red")
ax.plot([residualseq[ilarge]], [modelnormseq[ilarge]],
marker="^",
c="blue")
plt.tick_params(labelsize=12)
ax2 = fig.add_subplot(122)
pylab.xscale('log')
pylab.ylabel("Curvature", fontsize=12)
pylab.xlabel("Norm of Prediction Error", fontsize=12)
ax2.plot(residualseq, curveseq, marker=".", c="gray")
ax2.plot([residualseq[imax]], [curveseq[imax]], marker="o", c="green")
plt.tick_params(labelsize=12)
plt.savefig(folder_name + "others/lcurve.pdf",
bbox_inches="tight",
pad_inches=0.0)
plt.close()
#getting maps!
mest_lbest, dpre, residual, modelnorm, curv_lcurve = tikhonov_regularization(
W, lc, mprior, U, VT, S, lamb)
mest_ls, dpre, residual, modelnorm, curv_lcurve = tikhonov_regularization(
W, lc, mprior, U, VT, S, lamseq[ismall])
mest_ll, dpre, residual, modelnorm, curv_lcurve = tikhonov_regularization(
W, lc, mprior, U, VT, S, lamseq[ilarge])
dpi = 200
#best map
output = io.StringIO()
sys.stdout = output
hp.mollview(mest_lbest,
title="",
flip="geo",
cmap=plt.cm.bone,
min=0,
max=1.0)
hp.graticule(color="white")
plt.savefig(folder_name + "others/best_kw.pdf",
dpi=dpi,
bbox_inches="tight")
plt.close()
logger.debug("Fit finished")
np.save(folder_name + "model/best_tik", mest_lbest)
# too small lambda
hp.mollview(mest_ls, title="", flip="geo", cmap=plt.cm.bone)
hp.graticule(color="white")
plt.savefig(folder_name + "others/small_lam_kw.pdf",
dpi=dpi,
bbox_inches="tight")
plt.close()
np.save(folder_name + "model/too_small_tik", mest_ls)
# too large lambda
hp.mollview(mest_ll, title="", flip="geo", cmap=plt.cm.bone)
hp.graticule(color="white")
plt.savefig(folder_name + "others/large_lam_kw.pdf",
dpi=dpi,
bbox_inches="tight")
plt.close()
np.save(folder_name + "model/too_large_tik", mest_ll)
sys.stdout = sys.__stdout__
def _data_error_plot(models, X, Y, **kwargs):
with_legend = False
use = [0, 0, 0]
if isinstance(X, basestring): X = [X, None]
if isinstance(Y, basestring): Y = [Y, None]
x_prop, x_units = X
y_prop, y_units = Y
ret_list = []
every = kwargs.pop('every', 1)
upto = kwargs.pop('upto', len(models))
mark_images = kwargs.pop('mark_images', True)
hilite_model = kwargs.pop('hilite_model', None)
hilite_color = kwargs.pop('hilite_color', 'm')
yscale = kwargs.pop('yscale', 'log')
xscale = kwargs.pop('xscale', 'linear')
xlabel = kwargs.pop('xlabel', None)
ylabel = kwargs.pop('ylabel', None)
sigma = kwargs.pop('sigma', '1sigma')
kwargs.setdefault('color', 'k')
kwargs.setdefault('marker', '.')
kwargs.setdefault('ls', '-')
normal_kw = {'zorder': 0, 'drawstyle': 'steps', 'alpha': 1.0}
hilite_kw = {
'zorder': 1000,
'drawstyle': 'steps',
'alpha': 1.0,
'lw': 4,
'ls': '--'
}
accepted_kw = {'zorder': 500, 'drawstyle': 'steps', 'alpha': 0.5}
normal = []
hilite = []
accepted = []
#imgs = set()
imgs = defaultdict(set)
xmin, xmax = np.inf, -np.inf
ymin, ymax = np.inf, -np.inf
objplot = defaultdict(dict)
for mi in xrange(0, upto, every):
m = models[mi]
si = m.get('accepted', 2)
#print si
tag = ''
if si == False: tag = 'rejected'
if si == True: tag = 'accepted'
for [obj, data] in m['obj,data']:
try:
xs = data[x_prop][x_units]
ys = data[y_prop][y_units]
xlabel = _axis_label(xs, x_units) if not xlabel else xlabel
ylabel = _axis_label(ys, y_units) if not ylabel else ylabel
objplot[obj].setdefault(tag, {'ys': [], 'xs': None})
objplot[obj][tag]['ys'].append(ys)
objplot[obj][tag]['xs'] = xs
#objplot[obj].setdefault('%s:xs'%tag, xs)
#objplot[obj].setdefault('%s:ymax'%tag, ys)
#objplot[obj].setdefault('%s:ymin'%tag, ys)
#objplot[obj].setdefault('%s:ysum'%tag, np.zeros_like(ys))
#objplot[obj].setdefault('%s:count'%tag, 0)
#objplot[obj]['%s:ymax'%tag] = np.amax((objplot[obj]['%s:ymax'%tag], ys), axis=0)
#objplot[obj]['%s:ymin'%tag] = np.amin((objplot[obj]['%s:ymin'%tag], ys), axis=0)
#objplot[obj]['%s:ysum'%tag] += ys
#objplot[obj]['%s:count'%tag] += 1
if mark_images:
for i, src in enumerate(obj.sources):
for img in src.images:
imgs[i].add(
convert('arcsec to %s' % x_units,
np.abs(img.pos), obj.dL, data['nu']))
except KeyError as bad_key:
Log("Missing information for object %s with key %s. Skipping plot."
% (obj.name, bad_key))
continue
use[si] = 1
s = _styles[si]
#xmin, xmax = min(xmin, amin(data[X])), max(xmax, amax(data[X]))
#ymin, ymax = min(ymin, amin(data[Y])), max(ymax, amax(data[Y]))
for i, tag in enumerate(['rejected', 'accepted', '']):
for k, v in objplot.iteritems():
if tag not in v: break
#if not v.has_key('%s:count'%tag): break
avg, errp, errm = dist_range(v[tag]['ys'], sigma=sigma)
errp = errp - avg
errm = avg - errm
#s = np.sort(v[tag]['ys'], axis=0)
#avg = s[len(s)//2] if len(s)%2==1 else (s[len(s)//2] + s[len(s)//2+1])/2
#print s
#avg = np.median(v[tag]['ys'], axis=0)
#print avg
#print np.median(v[tag]['ys'], axis=1)
#errp = s[len(s) * .841] - avg
#errm = avg - s[len(s) * .159]
#errp = np.amax(v[tag]['ys'], axis=0) - avg
#errm = avg - np.amin(v[tag]['ys'], axis=0)
#errp = errm = np.std(v[tag]['ys'], axis=0, dtype=np.float64)
xs = v[tag]['xs']
# print [x[1] for x in v[tag]['ys']]
# pl.hist([x[1] for x in v[tag]['ys']])
# break
#avg = v['%s:ysum'%tag] / v['%s:count'%tag]
#errp = v['%s:ymax'%tag]-avg
#errm = avg-v['%s:ymin'%tag]
#errm = errp = np.std(
#print len(v['xs'])
#print len(avg)
#assert 0
#print len(xs)
#print len(avg)
ret_list.append([xs, avg, errm, errp])
yerr = (errm, errp) if not np.all(errm == errp) else None
if tag == 'rejected':
pl.errorbar(xs,
avg,
yerr=yerr,
c=_styles[0]['c'],
zorder=_styles[0]['z'])
else:
pl.errorbar(xs, avg, yerr=yerr, **kwargs)
# return
pl.xscale(xscale)
pl.yscale(yscale)
si = style_iterator()
for k, v in imgs.iteritems():
lw, ls, c = si.next()
for img_pos in v:
pl.axvline(img_pos, c=c, ls=ls, lw=lw, zorder=-2, alpha=0.5)
# if use[0] or use[1]:
# lines = [s['line'] for s,u in zip(_styles, use) if u]
# labels = [s['label'] for s,u in zip(_styles, use) if u]
# pl.legend(lines, labels)
if use[0]:
lines = [_styles[0]['line']]
labels = [_styles[0]['label']]
pl.legend(lines, labels)
#axis('scaled')
if xlabel: pl.xlabel(xlabel)
if ylabel: pl.ylabel(ylabel)
pl.xlim(xmin=pl.xlim()[0] - 0.01 * (pl.xlim()[1] - pl.xlim()[0]))
#pl.ylim(0, ymax)
return ret_list
def apphot_ps1stars(ccd,
ps,
apertures,
survey,
sky_inner_r=40,
sky_outer_r=50):
im = survey.get_image_object(ccd)
tim = im.get_tractor_image(gaussPsf=True, splinesky=True)
img = tim.getImage()
wcs = tim.subwcs
magrange = (15, 21)
ps1 = ps1cat(ccdwcs=wcs)
ps1 = ps1.get_stars(magrange=magrange)
print 'Got', len(ps1), 'PS1 stars'
band = ccd.filter
piband = ps1cat.ps1band[band]
print 'band:', band
ps1.cut(ps1.nmag_ok[:, piband] > 0)
print 'Keeping', len(ps1), 'stars with nmag_ok'
ok, x, y = wcs.radec2pixelxy(ps1.ra, ps1.dec)
apxy = np.vstack((x - 1., y - 1.)).T
ap = []
aperr = []
nmasked = []
with np.errstate(divide='ignore'):
ie = tim.getInvError()
imsigma = 1. / ie
imsigma[ie == 0] = 0
mask = (imsigma == 0)
for rad in apertures:
aper = photutils.CircularAperture(apxy, rad)
p = photutils.aperture_photometry(img, aper, error=imsigma, mask=mask)
aperr.append(p.field('aperture_sum_err'))
ap.append(p.field('aperture_sum'))
p = photutils.aperture_photometry((ie == 0), aper)
nmasked.append(p.field('aperture_sum'))
ap = np.vstack(ap).T
aperr = np.vstack(aperr).T
nmasked = np.vstack(nmasked).T
print 'Aperture fluxes:', ap[:5]
print 'Aperture flux errors:', aperr[:5]
print 'Nmasked:', nmasked[:5]
H, W = img.shape
sky = []
skysigma = []
skymed = []
skynmasked = []
for xi, yi in zip(x, y):
ix = int(np.round(xi))
iy = int(np.round(yi))
skyR = sky_outer_r
xlo = max(0, ix - skyR)
xhi = min(W, ix + skyR + 1)
ylo = max(0, iy - skyR)
yhi = min(H, iy + skyR + 1)
xx, yy = np.meshgrid(np.arange(xlo, xhi), np.arange(ylo, yhi))
r2 = (xx - xi)**2 + (yy - yi)**2
inannulus = ((r2 >= sky_inner_r**2) * (r2 < sky_outer_r**2))
unmasked = (ie[ylo:yhi, xlo:xhi] > 0)
#sky.append(np.median(img[ylo:yhi, xlo:xhi][inannulus * unmasked]))
skypix = img[ylo:yhi, xlo:xhi][inannulus * unmasked]
# this is the default value...
nsigma = 4.
goodpix, lo, hi = sigmaclip(skypix, low=nsigma, high=nsigma)
# sigmaclip returns unclipped pixels, lo,hi, where lo,hi are
# mean(goodpix) +- nsigma * sigma
meansky = np.mean(goodpix)
sky.append(meansky)
skysigma.append((meansky - lo) / nsigma)
skymed.append(np.median(skypix))
skynmasked.append(np.sum(inannulus * np.logical_not(unmasked)))
sky = np.array(sky)
skysigma = np.array(skysigma)
skymed = np.array(skymed)
skynmasked = np.array(skynmasked)
print 'sky', sky[:5]
print 'median sky', skymed[:5]
print 'sky sigma', skysigma[:5]
psmag = ps1.median[:, piband]
ap2 = ap - sky[:, np.newaxis] * (np.pi * apertures**2)[np.newaxis, :]
if ps is not None:
plt.clf()
nstars, naps = ap.shape
for iap in range(naps):
plt.plot(psmag, ap[:, iap], 'b.')
#for iap in range(naps):
# plt.plot(psmag, ap2[:,iap], 'r.')
plt.yscale('symlog')
plt.xlabel('PS1 %s mag' % band)
plt.ylabel('DECam Aperture Flux')
#plt.plot(psmag, nmasked[:,-1], 'ro')
plt.plot(np.vstack((psmag, psmag)),
np.vstack((np.zeros_like(psmag), nmasked[:, -1])),
'r-',
alpha=0.5)
plt.ylim(0, 1e3)
ps.savefig()
plt.clf()
plt.plot(ap.T / np.max(ap, axis=1), '.')
plt.ylim(0, 1)
ps.savefig()
plt.clf()
dimshow(tim.getImage(), **tim.ima)
ax = plt.axis()
plt.plot(x, y, 'o', mec='r', mfc='none', ms=10)
plt.axis(ax)
ps.savefig()
color = ps1_to_decam(ps1.median, band)
print 'Color terms:', color
T = fits_table()
T.apflux = ap.astype(np.float32)
T.apfluxerr = aperr.astype(np.float32)
T.apnmasked = nmasked.astype(np.int16)
# Zero out the errors when pixels are masked
T.apfluxerr[T.apnmasked > 0] = 0.
#T.apflux2 = ap2.astype(np.float32)
T.sky = sky.astype(np.float32)
T.skysigma = skysigma.astype(np.float32)
T.expnum = np.array([ccd.expnum] * len(T))
T.ccdname = np.array([ccd.ccdname] * len(T)).astype('S3')
T.band = np.array([band] * len(T))
T.ps1_objid = ps1.obj_id
T.ps1_mag = psmag + color
T.ra = ps1.ra
T.dec = ps1.dec
T.tai = np.array([tim.time.toMjd()] * len(T)).astype(np.float32)
T.airmass = np.array([tim.primhdr['AIRMASS']] * len(T)).astype(np.float32)
T.x = (x + tim.x0).astype(np.float32)
T.y = (y + tim.y0).astype(np.float32)
if False:
plt.clf()
plt.plot(skymed, sky, 'b.')
plt.xlabel('sky median')
plt.ylabel('sigma-clipped sky')
ax = plt.axis()
lo, hi = min(ax), max(ax)
plt.plot([lo, hi], [lo, hi], 'k-', alpha=0.25)
plt.axis(ax)
ps.savefig()
return T, tim.primhdr
plt.figure(figsize=(10, 10))
lw = 0.5
plt.clf()
plt.plot(f2, rD, linewidth=lw)
plt.title("Signal")
plt.xlabel("Frequency [MHz]")
plt.ylabel("Temperature [K]")
plt.savefig("signal.png")
plt.clf()
plt.plot(f2, np.abs(np.fft.fftshift(np.fft.fft(rD))), linewidth=lw)
plt.title("Signal FFT")
plt.xlabel("Frequency [MHz]")
plt.ylabel("Temperature [K]")
plt.yscale("log")
plt.savefig("signal_fft.png")
plt.clf()
plt.plot(f2, filter(rD), linewidth=lw)
plt.title("Filtered Signal")
plt.xlabel("Frequency [MHz]")
plt.ylabel("Temperature [K]")
plt.savefig("filtered_low.png")
plt.clf()
plt.plot(f2, np.abs(np.fft.fftshift(np.fft.fft(filter(rD)))), linewidth=lw)
plt.title("Filtered Signal FFT")
plt.xlabel("Frequency [MHz]")
plt.ylabel("Temperature [K]")
plt.yscale("log")
def GasMassFunction(self, G):
print('Plotting the cold gas mass function')
plt.figure() # New figure
ax = plt.subplot(111) # 1 plot on the figure
binwidth = 0.1 # mass function histogram bin width
# calculate all
w = np.where(G.ColdGas > 0.0)[0]
mass = np.log10(G.ColdGas[w] * 1.0e10 / self.Hubble_h)
sSFR = (G.SfrDisk[w] + G.SfrBulge[w]) / (G.StellarMass[w] * 1.0e10 /
self.Hubble_h)
mi = np.floor(min(mass)) - 2
ma = np.floor(max(mass)) + 2
NB = (ma - mi) / binwidth
(counts, binedges) = np.histogram(mass, range=(mi, ma), bins=NB)
# Set the x-axis values to be the centre of the bins
xaxeshisto = binedges[:-1] + 0.5 * binwidth
# additionally calculate red
w = np.where(sSFR < 10.0**sSFRcut)[0]
massRED = mass[w]
(countsRED, binedges) = np.histogram(massRED, range=(mi, ma), bins=NB)
# additionally calculate blue
w = np.where(sSFR > 10.0**sSFRcut)[0]
massBLU = mass[w]
(countsBLU, binedges) = np.histogram(massBLU, range=(mi, ma), bins=NB)
# Baldry+ 2008 modified data used for the MCMC fitting
Zwaan = np.array([[6.933, -0.333], [7.057, -0.490], [7.209, -0.698],
[7.365, -0.667], [7.528, -0.823], [7.647, -0.958],
[7.809, -0.917], [7.971, -0.948], [8.112, -0.927],
[8.263, -0.917], [8.404, -1.062], [8.566, -1.177],
[8.707, -1.177], [8.853, -1.312], [9.010, -1.344],
[9.161, -1.448], [9.302, -1.604], [9.448, -1.792],
[9.599, -2.021], [9.740, -2.406], [9.897, -2.615],
[10.053, -3.031], [10.178, -3.677], [10.335, -4.448],
[10.492, -5.083]],
dtype=np.float32)
ObrRaw = np.array([[7.300, -1.104], [7.576, -1.302], [7.847, -1.250],
[8.133, -1.240], [8.409, -1.344], [8.691, -1.479],
[8.956, -1.792], [9.231, -2.271], [9.507, -3.198],
[9.788, -5.062]],
dtype=np.float32)
ObrCold = np.array([[8.009, -1.042], [8.215, -1.156], [8.409, -0.990],
[8.604, -1.156], [8.799, -1.208], [9.020, -1.333],
[9.194, -1.385], [9.404, -1.552], [9.599, -1.677],
[9.788, -1.812], [9.999, -2.312], [10.172, -2.656],
[10.362, -3.500], [10.551, -3.635],
[10.740, -5.010]],
dtype=np.float32)
ObrCold_xval = np.log10(10**(ObrCold[:, 0]) / self.Hubble_h /
self.Hubble_h)
ObrCold_yval = (10**(ObrCold[:, 1]) * self.Hubble_h * self.Hubble_h *
self.Hubble_h)
Zwaan_xval = np.log10(10**(Zwaan[:, 0]) / self.Hubble_h /
self.Hubble_h)
Zwaan_yval = (10**(Zwaan[:, 1]) * self.Hubble_h * self.Hubble_h *
self.Hubble_h)
ObrRaw_xval = np.log10(10**(ObrRaw[:, 0]) / self.Hubble_h /
self.Hubble_h)
ObrRaw_yval = (10**(ObrRaw[:, 1]) * self.Hubble_h * self.Hubble_h *
self.Hubble_h)
plt.plot(ObrCold_xval,
ObrCold_yval,
color='black',
lw=7,
alpha=0.25,
label='Obr. \& Raw. 2009 (Cold Gas)')
plt.plot(Zwaan_xval,
Zwaan_yval,
color='cyan',
lw=7,
alpha=0.25,
label='Zwaan et al. 2005 (HI)')
plt.plot(ObrRaw_xval,
ObrRaw_yval,
color='magenta',
lw=7,
alpha=0.25,
label='Obr. \& Raw. 2009 (H2)')
# Overplot the model histograms
plt.plot(xaxeshisto,
counts / self.volume * self.Hubble_h * self.Hubble_h *
self.Hubble_h / binwidth,
'k-',
label='Model - Cold Gas')
plt.yscale('log', nonposy='clip')
plt.axis([8.0, 11.5, 1.0e-6, 1.0e-1])
# Set the x-axis minor ticks
ax.xaxis.set_minor_locator(plt.MultipleLocator(0.1))
plt.ylabel(
r'$\phi\ (\mathrm{Mpc}^{-3}\ \mathrm{dex}^{-1})$') # Set the y...
plt.xlabel(r'$\log_{10} M_{\mathrm{X}}\ (M_{\odot})$'
) # and the x-axis labels
leg = plt.legend(loc='lower left', numpoints=1, labelspacing=0.1)
leg.draw_frame(False) # Don't want a box frame
for t in leg.get_texts(): # Reduce the size of the text
t.set_fontsize('medium')
outputFile = OutputDir + '3.GasMassFunction' + OutputFormat
plt.savefig(outputFile) # Save the figure
print('Saved file to', outputFile)
plt.close()
# Add this plot to our output list
OutputList.append(outputFile)
def plot_AM_correlation(mcmodel,
startvariances=None,
variables=None,
trim=0,
thin=1,
plotcov=True,
plotcorrelation=True,
plotvalues=True,
plotdeviance=False):
"""Plot correlation or covariance from AdaptativeMetropolis traces.
mcmodel -- a pymc MCMC object with a db containing an
AdaptativeMetropolis trace.
"""
oldnumpyerrsettings = numpy.seterr(invalid='ignore')
cname = None
for key in mcmodel.db.trace_names[-1]:
if key.startswith('AdaptiveMetropolis'):
cname = key
#print cname
if cname is None:
print "Could not find an AdaptiveMetropolis trace."
return
Ctrace = mcmodel.db.trace(cname)[trim::thin]
indices = numpy.arange(trim, len(mcmodel.db.trace(cname)[:]), thin)
### Figure out order of stochastics. ###
positions = []
stochlist = list(mcmodel.stochastics.copy())
icount = 0
olength = len(stochlist)
cname = cname.replace('AdaptiveMetropolis', '')
while len(stochlist) > 0:
icount += 1
stoch = stochlist.pop()
print stoch
if cname.count(stoch.__name__) == 0:
print "Couldn't find %s in %s" % (stoch.__name__, cname)
continue
positions.append([stoch, cname.find('_' + stoch.__name__)])
# Sort list by position in cname string.
positions.sort(key=lambda l: l[1])
stochlist = [l[0] for l in positions]
names = [s.__name__ for s in stochlist]
title = " ".join(names)
print title
covlist = []
fig1 = pylab.figure()
fig1.subplots_adjust(right=0.7)
fig1.set_label('AMcorrelations')
ax1 = pylab.gca()
divider = make_axes_locatable(ax1)
if plotvalues:
ax2 = divider.append_axes("bottom", 1.5, pad=0.0, sharex=ax1)
fig1.sca(ax1)
if plotdeviance:
ax3 = divider.append_axes("top", 1.5, pad=0.0, sharex=ax1)
fig1.sca(ax1)
pylab.title(cname)
plottedinds = set([])
inds = set(range(Ctrace.shape[1]))
colors = ['r', 'g', 'b', 'c', 'm', 'k', 'y']
for (i, stoch) in enumerate(stochlist):
if variables is not None:
if stoch not in variables:
continue
plottedinds.add(i)
if plotvalues:
ax2.plot(indices, mcmodel.db.trace(stoch.__name__)[trim::thin])
if plotdeviance:
ax3.plot(indices, mcmodel.db.trace('deviance')[trim::thin])
if not plotcorrelation:
lines = pylab.plot(indices,
Ctrace[:, i, i]**0.5,
alpha='0.5',
lw=3.0,
label=names[i] + " stdev",
color=colors[i])
if startvariances is not None:
pylab.axhline(y=startvariances[stoch]**0.5,
ls='-',
c=lines[0]._color,
lw=1.5)
else:
lines = pylab.plot(indices,
(Ctrace[:, i, i] / Ctrace[-1, i, i])**0.5,
alpha='0.5',
lw=3.0,
label=names[i] + " stdev/stdev_final",
color=colors[i])
if startvariances is not None:
pylab.axhline(y=(startvariances[stoch] /
Ctrace[-1, i, i])**0.5,
ls='-',
c=colors[i],
lw=1.5)
if not plotcov:
continue
for j in inds.difference(plottedinds):
if plotcorrelation:
cov = Ctrace[:, i,
j] / (Ctrace[:, i, i]**0.5 * Ctrace[:, j, j]**0.5)
mag = abs(cov)
else:
cov = Ctrace[:, i, j]
mag = abs(cov)**0.5
sign = (cov > 0) * 1 + (cov <= 0) * -1
covlist.append([names[i] + ' * ' + names[j], mag[-1], sign[-1]])
pylab.plot(indices,
sign * mag,
alpha='0.9',
lw=3.0,
c=colors[i],
ls='--')
pylab.plot(indices,
-sign * mag,
alpha='0.9',
lw=3.0,
c=colors[i],
ls=':')
pylab.plot(indices,
mag,
alpha='0.9',
lw=1.0,
color=colors[j],
ls='-',
label=names[i] + ' * ' + names[j])
covlist.sort(key=lambda l: l[1], reverse=True)
for l in covlist:
print "%50s: %.3g" % (l[0], l[1] * l[2])
#pylab.legend(loc='upper left', bbox_to_anchor=(1.00,1.0,0.25,-1.0))
pylab.legend(loc=(1.0, 0.0))
if plotcorrelation:
pylab.ylim(ymin=0)
else:
pylab.yscale('log')
pylab.draw()
numpy.seterr(**oldnumpyerrsettings)
def StellarMassFunction(self, G):
print('Plotting the stellar mass function')
plt.figure() # New figure
ax = plt.subplot(111) # 1 plot on the figure
binwidth = 0.1 # mass function histogram bin width
# calculate all
w = np.where(G.StellarMass > 0.0)[0]
mass = np.log10(G.StellarMass[w] * 1.0e10 / self.Hubble_h)
sSFR = (G.SfrDisk[w] + G.SfrBulge[w]) / (G.StellarMass[w] * 1.0e10 /
self.Hubble_h)
mi = np.floor(min(mass)) - 2
ma = np.floor(max(mass)) + 2
NB = (ma - mi) / binwidth
(counts, binedges) = np.histogram(mass, range=(mi, ma), bins=NB)
# Set the x-axis values to be the centre of the bins
xaxeshisto = binedges[:-1] + 0.5 * binwidth
# additionally calculate red
w = np.where(sSFR < 10.0**sSFRcut)[0]
massRED = mass[w]
(countsRED, binedges) = np.histogram(massRED, range=(mi, ma), bins=NB)
# additionally calculate blue
w = np.where(sSFR > 10.0**sSFRcut)[0]
massBLU = mass[w]
(countsBLU, binedges) = np.histogram(massBLU, range=(mi, ma), bins=NB)
# Baldry+ 2008 modified data used for the MCMC fitting
Baldry = np.array([
[7.05, 1.3531e-01, 6.0741e-02],
[7.15, 1.3474e-01, 6.0109e-02],
[7.25, 2.0971e-01, 7.7965e-02],
[7.35, 1.7161e-01, 3.1841e-02],
[7.45, 2.1648e-01, 5.7832e-02],
[7.55, 2.1645e-01, 3.9988e-02],
[7.65, 2.0837e-01, 4.8713e-02],
[7.75, 2.0402e-01, 7.0061e-02],
[7.85, 1.5536e-01, 3.9182e-02],
[7.95, 1.5232e-01, 2.6824e-02],
[8.05, 1.5067e-01, 4.8824e-02],
[8.15, 1.3032e-01, 2.1892e-02],
[8.25, 1.2545e-01, 3.5526e-02],
[8.35, 9.8472e-02, 2.7181e-02],
[8.45, 8.7194e-02, 2.8345e-02],
[8.55, 7.0758e-02, 2.0808e-02],
[8.65, 5.8190e-02, 1.3359e-02],
[8.75, 5.6057e-02, 1.3512e-02],
[8.85, 5.1380e-02, 1.2815e-02],
[8.95, 4.4206e-02, 9.6866e-03],
[9.05, 4.1149e-02, 1.0169e-02],
[9.15, 3.4959e-02, 6.7898e-03],
[9.25, 3.3111e-02, 8.3704e-03],
[9.35, 3.0138e-02, 4.7741e-03],
[9.45, 2.6692e-02, 5.5029e-03],
[9.55, 2.4656e-02, 4.4359e-03],
[9.65, 2.2885e-02, 3.7915e-03],
[9.75, 2.1849e-02, 3.9812e-03],
[9.85, 2.0383e-02, 3.2930e-03],
[9.95, 1.9929e-02, 2.9370e-03],
[10.05, 1.8865e-02, 2.4624e-03],
[10.15, 1.8136e-02, 2.5208e-03],
[10.25, 1.7657e-02, 2.4217e-03],
[10.35, 1.6616e-02, 2.2784e-03],
[10.45, 1.6114e-02, 2.1783e-03],
[10.55, 1.4366e-02, 1.8819e-03],
[10.65, 1.2588e-02, 1.8249e-03],
[10.75, 1.1372e-02, 1.4436e-03],
[10.85, 9.1213e-03, 1.5816e-03],
[10.95, 6.1125e-03, 9.6735e-04],
[11.05, 4.3923e-03, 9.6254e-04],
[11.15, 2.5463e-03, 5.0038e-04],
[11.25, 1.4298e-03, 4.2816e-04],
[11.35, 6.4867e-04, 1.6439e-04],
[11.45, 2.8294e-04, 9.9799e-05],
[11.55, 1.0617e-04, 4.9085e-05],
[11.65, 3.2702e-05, 2.4546e-05],
[11.75, 1.2571e-05, 1.2571e-05],
[11.85, 8.4589e-06, 8.4589e-06],
[11.95, 7.4764e-06, 7.4764e-06],
],
dtype=np.float32)
# Finally plot the data
# plt.errorbar(
# Baldry[:, 0],
# Baldry[:, 1],
# yerr=Baldry[:, 2],
# color='g',
# linestyle=':',
# lw = 1.5,
# label='Baldry et al. 2008',
# )
Baldry_xval = np.log10(10**Baldry[:, 0] / self.Hubble_h /
self.Hubble_h)
if (whichimf == 1):
Baldry_xval = Baldry_xval - 0.26 # convert back to Chabrier IMF
Baldry_yvalU = (Baldry[:, 1] + Baldry[:, 2]
) * self.Hubble_h * self.Hubble_h * self.Hubble_h
Baldry_yvalL = (Baldry[:, 1] - Baldry[:, 2]
) * self.Hubble_h * self.Hubble_h * self.Hubble_h
plt.fill_between(Baldry_xval,
Baldry_yvalU,
Baldry_yvalL,
facecolor='purple',
alpha=0.25,
label='Baldry et al. 2008 (z=0.1)')
# This next line is just to get the shaded region to appear correctly in the legend
plt.plot(xaxeshisto,
counts / self.volume * self.Hubble_h * self.Hubble_h *
self.Hubble_h / binwidth,
label='Baldry et al. 2008',
color='purple',
alpha=0.3)
# # Cole et al. 2001 SMF (h=1.0 converted to h=0.73)
# M = np.arange(7.0, 13.0, 0.01)
# Mstar = np.log10(7.07*1.0e10 /self.Hubble_h/self.Hubble_h)
# alpha = -1.18
# phistar = 0.009 *self.Hubble_h*self.Hubble_h*self.Hubble_h
# xval = 10.0 ** (M-Mstar)
# yval = np.log(10.) * phistar * xval ** (alpha+1) * np.exp(-xval)
# plt.plot(M, yval, 'g--', lw=1.5, label='Cole et al. 2001') # Plot the SMF
# Overplot the model histograms
plt.plot(xaxeshisto,
counts / self.volume * self.Hubble_h * self.Hubble_h *
self.Hubble_h / binwidth,
'k-',
label='Model - All')
plt.plot(xaxeshisto,
countsRED / self.volume * self.Hubble_h * self.Hubble_h *
self.Hubble_h / binwidth,
'r:',
lw=2,
label='Model - Red')
plt.plot(xaxeshisto,
countsBLU / self.volume * self.Hubble_h * self.Hubble_h *
self.Hubble_h / binwidth,
'b:',
lw=2,
label='Model - Blue')
plt.yscale('log', nonposy='clip')
plt.axis([8.0, 12.5, 1.0e-6, 1.0e-1])
# Set the x-axis minor ticks
ax.xaxis.set_minor_locator(plt.MultipleLocator(0.1))
plt.ylabel(
r'$\phi\ (\mathrm{Mpc}^{-3}\ \mathrm{dex}^{-1})$') # Set the y...
plt.xlabel(r'$\log_{10} M_{\mathrm{stars}}\ (M_{\odot})$'
) # and the x-axis labels
plt.text(12.2, 0.03, whichsimulation, size='large')
leg = plt.legend(loc='lower left', numpoints=1, labelspacing=0.1)
leg.draw_frame(False) # Don't want a box frame
for t in leg.get_texts(): # Reduce the size of the text
t.set_fontsize('medium')
outputFile = OutputDir + '1.StellarMassFunction' + OutputFormat
plt.savefig(outputFile) # Save the figure
print('Saved file to', outputFile)
plt.close()
# Add this plot to our output list
OutputList.append(outputFile)
def weak_bounds():
pylab.ion()
pylab.figure(1, figsize=figsize)
pylab.clf()
qvec = [0.001, 0.01, 0.1]
m = np.logspace(0, 5)
pylab.loglog(m, m, 'k:', linewidth=lw)
cvec = ['b', 'c', 'g']
"""
for (q, c) in zip(qvec, cvec):
K = np.log(q)/np.log(1-q)
M = np.linspace(1, K)
MM = np.logspace(np.log10(M[-1]), 5)
SS = np.zeros(len(MM)) + K
SS[MM < K] = MM[MM < K]
SS[MM > 2**K] += np.log2(MM[MM > 2**K] - K)
pylab.loglog(MM, SS, c + '-', linewidth=1)
"""
for (q, c) in zip(qvec, cvec):
K = np.log(q) / np.log(1 - q)
print q, K
M = np.linspace(1, K)
S = (1 - q - (1 - q)**M) / q
MM = np.array(M.tolist() + np.logspace(np.log10(M[-1]), 5).tolist())
SS = np.array(S.tolist() + [S[-1]] * 50)
SL = SS * 0 + K
SL[MM < K] = MM[MM < K]
SL[MM > 2**K] += np.log2(MM[MM > 2**K] - K)
pylab.fill_between(MM, SL, SS, color=c, alpha=0.2)
A = 1
for (q, c) in zip(qvec, cvec):
p = 1 - q
R = np.log(q) / np.log(1 - q)
B = p**np.arange(1, R)
D = np.ones(len(B))
B = np.concatenate([B, q * p**np.arange(0, R)])
D = np.concatenate([D, np.arange(R)])
for pow in range(2, 88):
B = np.concatenate([B, q**pow * p**np.arange(0, R)])
D = np.concatenate([D, sm.comb(np.arange(R), pow)])
assert len(B) == len(D), 'len(B) != len(D)'
if len(B) > 10**8:
print pow, 'breaking'
break
B = np.concatenate(([1], B))
D = np.concatenate(([1], D))
i = B.argsort()[::-1]
B = (D[i] * B[i]).cumsum()
D = D[i].cumsum()
j = np.nonzero((D >= A) & (D <= 10**5))[0]
#pylab.loglog(np.arange(A, 100001), A*C[np.arange(A-1, 100000)/A])
pylab.loglog(D[j], A * B[j / A], c, linewidth=lw)
pylab.draw()
pylab.loglog(m, np.log2(m + 1), 'purple', linewidth=lw)
pylab.yscale('log')
pylab.xscale('log')
#pylab.loglog(MM, SS, c + '-', linewidth=1)
pylab.xlabel('Number of cores $(J)$', fontsize=fs)
pylab.ylabel('Expected speedup $(E[S_J])$', fontsize=fs)
pylab.title('Expected speedup with simple bounds', fontsize=fs)
pylab.legend(['$E[S_J] = J$'] + [('$q = %1.4f' % q).strip('0') + '$'
for q in qvec] +
['$E[S_J] = \log_2 (J+1)$'],
loc='upper left',
fontsize=fs)
pylab.xticks(fontsize=fs)
pylab.yticks(fontsize=fs)
pylab.axis((1, 10**4, 1, 10**4))
pylab.savefig('../figs/expected-speedup.pdf')
def main():
if (len(sys.argv) != 5):
print()
print("##################################")
print("Ariel J. Amsellem")
print("*****@*****.**")
print("KICP UChicago")
print("##################################\n")
print(
"run_Multinest.py - Run Multinest on Sigmag Measurements to determine measure of best fit with errors."
)
print(
"Usage: python run_Multinest.py [output directory/file name] [data filename] [color] [plot label/title]"
)
print(
"Example: python run_Multinest.py Fiducial_RM splashback_cov_Fiducial_RM.npz r Fiducial_Redmapper"
)
sys.exit(0)
out_directory = str(sys.argv[1])
dat_filename = str(sys.argv[2])
color = str(sys.argv[3])
label = str(sys.argv[4])
label = label.replace("_", " ")
# Scipy Minimization
# Load Data
data = np.load(
'/Users/arielamsellem/Desktop/Research/splashback_codes_master/npzs/' +
dat_filename)
sigmag = data['sg_mean']
sigmag_sig = data['sg_sig']
sigmag_cov = data['cov']
rperp = data['r_data']
# Priors
log_alpha = -0.32085983 - 0.1
log_beta = 0.16309539
log_gamma = 0.64815634
log_r_s = 0.85387196 - 0.1
log_r_t = 0.08325509
log_rho_0 = -0.8865869 - 0.5
log_rho_s = -0.19838697 - 0.3
se = 1.3290722
ln_mis = -1.146114384
f_mis = 0.15857366
# Chihway: alpha, beta, gamma, r_s, r_t, rho_0, rho_s, se, ln_mis, f_mis
params = np.array([
log_alpha, log_beta, log_gamma, log_r_s, log_r_t, log_rho_0, log_rho_s,
se, ln_mis, f_mis
])
# Minimized Splashback Model of Data
print('Running Scipy Minimize...')
print('')
nll = lambda *args: -1 * lnlikelihood(*args)
p0 = params.copy()
bounds = ((None, None), (None, None), (None, None), (np.log10(0.1 / h0),
np.log10(5.0 / h0)),
(np.log10(0.1 / h0), np.log10(5.0 / h0)), (None, None),
(None, None), (-10., 10.), (np.log(0.01), np.log(0.99)), (0.01,
0.99))
data_vec = sigmag.copy()
invcov = np.linalg.inv(sigmag_cov.copy())
args = (rperp, z, data_vec, invcov, h0, 1)
result = op.minimize(nll,
p0,
args=args,
options={'maxiter': 200},
bounds=bounds)
best_params = result.x
best_lnlike = -result.fun
# Scipy Stats
model = Sigmag(rperp, z, best_params, h0, 1)
diff = data_vec - model
chisq_min = np.dot(diff, np.dot(invcov, diff))
# Defining the Multinest Function
def run_multinest(rperp, sigmag, invcov, splashback, outfile):
def Prior(cube, ndim, nparams):
# Sigma Values are from Chang 2018 Table 2. Each sigma is half a prior range
cube[0] = gaussian(np.log10(0.19), 0.2, cube[0]) # log(alpha)
cube[1] = gaussian(np.log10(6.), 0.2, cube[1]) # log(beta)
cube[2] = gaussian(np.log10(4.), 0.2, cube[2]) # log(gamma)
cube[3] = uniform(0.1, 5., cube[3]) # r_s
cube[4] = uniform(0.1, 5., cube[4]) # r_t
cube[5] = uniform(0., 10., cube[5]) # rho_0
cube[6] = uniform(0., 10., cube[6]) # rho_s
cube[7] = uniform(1., 10., cube[7]) # s_e
cube[8] = gaussian(-1.13, 0.22, cube[8]) # ln(c_mis)
cube[9] = gaussian(0.22, 0.11, cube[9]) # f_mis
def Loglike(cube, ndim, nparams):
# Read in parameters
log_alpha = cube[0]
log_beta = cube[1]
log_gamma = cube[2]
r_s = cube[3]
r_t = cube[4]
rho_0 = cube[5]
rho_s = cube[6]
se = cube[7]
ln_mis = cube[8]
f_mis = cube[9]
params = [
log_alpha, log_beta, log_gamma, r_s, r_t, rho_0, rho_s, se,
ln_mis, f_mis
]
# Calculate likelihood
sig_m = Sigmag(rperp, z, params, h0, splashback)
vec = sig_m - sigmag
likelihood = -0.5 * np.matmul(np.matmul(vec, invcov), vec.T)
# Calculate prior
#prior = -0.5*(-1.13-ln_mis)**2/0.22**2 - 0.5*(log_alpha - np.log10(0.19))**2/0.4**2 - 0.5*(log_beta - np.log10(6.0))**2/0.4**2 - 0.5*(log_gamma - np.log10(4.0))**2/0.4**2 -0.5*(f_mis-0.22)**2/0.11**2
prior = 0.
# Total probability
tot = likelihood + prior
return tot
# Run Multinest
mult.run(Loglike,
Prior,
10,
outputfiles_basename=outfile,
verbose=False)
# Saving Results
os.mkdir('/Users/arielamsellem/Desktop/Research/Multinest/' +
out_directory)
out_filename = out_directory
out_directory = '/Users/arielamsellem/Desktop/Research/Multinest/' + out_directory + '/'
out_filename = out_directory + out_filename
# Run Multinest
run_multinest(rperp, sigmag, invcov, 1, out_filename)
# Save Output to File "log.txt"
stdoutOrigin = sys.stdout
sys.stdout = open(out_directory + "log.txt", "w")
# Read in Multinest Results
# Unequal Weights
#multinest_out = np.genfromtxt(out_filename + '.txt')
#samples_txt = multinest_out[:,2:]
#likelihood_txt = -1.*multinest_out[:,1]/2
# Equal Weights
multinest_out = np.genfromtxt(out_filename + 'post_equal_weights.dat')
samples_txt = multinest_out[:, :-1]
likelihood_txt = multinest_out[:, -1]
# Multinest Best Parameters
analyzer = mult.analyse.Analyzer(10,
outputfiles_basename=(out_filename),
verbose=False)
bestfit_params_multinest = analyzer.get_best_fit()
best_params_mult = bestfit_params_multinest['parameters']
best_loglike_mult = bestfit_params_multinest['log_likelihood']
# Multinest Stats
model_mult = Sigmag(rperp, z, best_params_mult, h0, 1)
diff_mult = data_vec - model_mult
chisq_mult = np.dot(diff_mult, np.dot(invcov, diff_mult))
print("Best Parameters From Minimization: " + str(best_params))
print("Loglike From Minimization: " + str(best_lnlike))
print("Best Parameters From Multinest: " + str(best_params_mult))
print("Loglike From Multinest: " + str(best_loglike_mult))
print("Chi-Squared Scipy Minimize: " + str(chisq_min))
print("Chi-Squared Multinest: " + str(chisq_mult))
sys.stdout.close()
sys.stdout = stdoutOrigin
# Get Rho Values and Error Range
low, high = profile_range(samples_txt, rperp, z, 16, 84)
r_rho, r_rhoderiv, rho, drho, rho_i, rho_o = find_rho_drho(best_params)
r_rho_mult, r_rhoderiv_mult, rho_mult, drho_mult, rho_i_mult, rho_o_mult = find_rho_drho(
best_params_mult)
# Plot Results
print('')
print('Plotting Results...')
samples = MCSamples(samples=samples_txt,
loglikes=likelihood_txt,
names=[
'alpha', 'beta', 'gamma', 'rs', 'rt', 'rho0',
'rhos', 'se', 'lnmis', 'fmis'
],
labels=[
'\\alpha', '\\beta', '\\gamma', 'r_s', 'r_t',
'\\rho_0', '\\rho_s', 's_e', 'ln(c_{mis})',
'f_{mis}'
])
# Triangle Plot
sns.set_style("white")
g = plots.getSubplotPlotter(width_inch=12)
g.triangle_plot(samples,
filled=True,
colors=[color],
lw=[3],
line_args=[{
'lw': 2,
'color': 'k'
}])
plt.savefig(out_directory + 'Triangle_Multinest.png', dpi=600)
# Plot Error Region Around \\rho Derivative
sns.set_style("whitegrid")
fig = plt.figure(figsize=(20, 10))
plt.suptitle(label, fontsize=23, fontweight=900)
plt.subplot(121)
plt.semilogx(r_rho,
rho,
color=color,
label='Splashback Fit (Scipy)',
linewidth=1)
plt.semilogx(r_rho,
rho_i,
color=color,
label='Scipy Inner Profile',
linewidth=1,
linestyle='--')
plt.semilogx(r_rho,
rho_o,
color=color,
label='Scipy Outer Profile',
linewidth=1,
linestyle='-.')
plt.semilogx(r_rho_mult,
rho_mult,
color="fuchsia",
label='Splashback Fit (Multinest)',
linewidth=1)
plt.semilogx(r_rho_mult,
rho_i_mult,
color="fuchsia",
label='Multinest Inner Profile',
linewidth=1,
linestyle='--')
plt.semilogx(r_rho_mult,
rho_o_mult,
color="fuchsia",
label='Multinest Outer Profile',
linewidth=1,
linestyle='-.')
plt.xlabel('$R [Mpc]$', fontsize=15)
plt.ylabel('$\\rho(R)$', fontsize=15)
plt.xscale('log')
plt.yscale('log')
plt.ylim(bottom=10**-4)
plt.legend(fontsize=18, loc='lower left')
plt.subplot(122)
plt.semilogx(r_rhoderiv,
drho,
color=color,
label='Splashback Fit (Scipy)',
linewidth=1)
plt.semilogx(r_rhoderiv_mult,
drho_mult,
color=color,
label='Splashback Fit (Multinest)',
linestyle='--',
linewidth=1)
plt.fill_between(r_rhoderiv, low, high, color=color, alpha=0.25)
plt.xlim(0.1, 10.)
plt.xlabel('$R [Mpc]$', fontsize=15)
plt.ylabel('$\\frac{dlog(\\rho(R))}{dlog(R)}$', fontsize=23)
fig.tight_layout(rect=[0, 0.03, 1, 0.95])
plt.savefig(out_directory + 'rho_Multinest.png', dpi=600)
# Plot Sigmag Bestfit from Multinest
plt.figure(figsize=(7, 5))
plt.errorbar(rperp,
sigmag,
yerr=sigmag_sig,
capsize=4,
label=label,
color=color,
ls='none')
plt.semilogx(rperp,
Sigmag(rperp, z, best_params, h0, 1),
label='Splashback Fit (Scipy)',
color=color)
plt.semilogx(rperp,
Sigmag(rperp, z, best_params_mult, h0, 1),
label='Splashback Fit (Multinest)',
linestyle='--',
color=color)
plt.xlabel('$R [Mpc]$', fontsize=15)
plt.ylabel('$\Sigma_{g} [(1/Mpc)^2]$', fontsize=15)
plt.xscale('log')
plt.yscale('log')
plt.legend(fontsize=14, loc='lower left')
plt.savefig(out_directory + 'Sigmag.png', dpi=600)
def BaryonicMassFunction(self, G):
print('Plotting the baryonic mass function')
plt.figure() # New figure
ax = plt.subplot(111) # 1 plot on the figure
binwidth = 0.1 # mass function histogram bin width
# calculate BMF
w = np.where(G.StellarMass + G.ColdGas > 0.0)[0]
mass = np.log10(
(G.StellarMass[w] + G.ColdGas[w]) * 1.0e10 / self.Hubble_h)
mi = np.floor(min(mass)) - 2
ma = np.floor(max(mass)) + 2
NB = (ma - mi) / binwidth
(counts, binedges) = np.histogram(mass, range=(mi, ma), bins=NB)
# Set the x-axis values to be the centre of the bins
xaxeshisto = binedges[:-1] + 0.5 * binwidth
# Bell et al. 2003 BMF (h=1.0 converted to h=0.73)
M = np.arange(7.0, 13.0, 0.01)
Mstar = np.log10(5.3 * 1.0e10 / self.Hubble_h / self.Hubble_h)
alpha = -1.21
phistar = 0.0108 * self.Hubble_h * self.Hubble_h * self.Hubble_h
xval = 10.0**(M - Mstar)
yval = np.log(10.) * phistar * xval**(alpha + 1) * np.exp(-xval)
if (whichimf == 0):
# converted diet Salpeter IMF to Salpeter IMF
plt.plot(np.log10(10.0**M / 0.7),
yval,
'b-',
lw=2.0,
label='Bell et al. 2003') # Plot the SMF
elif (whichimf == 1):
# converted diet Salpeter IMF to Salpeter IMF, then to Chabrier IMF
plt.plot(np.log10(10.0**M / 0.7 / 1.8),
yval,
'g--',
lw=1.5,
label='Bell et al. 2003') # Plot the SMF
# Overplot the model histograms
plt.plot(xaxeshisto,
counts / self.volume * self.Hubble_h * self.Hubble_h *
self.Hubble_h / binwidth,
'k-',
label='Model')
plt.yscale('log', nonposy='clip')
plt.axis([8.0, 12.5, 1.0e-6, 1.0e-1])
# Set the x-axis minor ticks
ax.xaxis.set_minor_locator(plt.MultipleLocator(0.1))
plt.ylabel(
r'$\phi\ (\mathrm{Mpc}^{-3}\ \mathrm{dex}^{-1})$') # Set the y...
plt.xlabel(r'$\log_{10}\ M_{\mathrm{bar}}\ (M_{\odot})$'
) # and the x-axis labels
leg = plt.legend(loc='lower left', numpoints=1, labelspacing=0.1)
leg.draw_frame(False) # Don't want a box frame
for t in leg.get_texts(): # Reduce the size of the text
t.set_fontsize('medium')
outputFile = OutputDir + '2.BaryonicMassFunction' + OutputFormat
plt.savefig(outputFile) # Save the figure
print('Saved file to', outputFile)
plt.close()
# Add this plot to our output list
OutputList.append(outputFile)
def run(self):
logging.info("(ptc.doPTC) executing")
res = []
##
## for each quadrant
##
for q in self.settings['quadrants']:
##
## read this quadrant's attributes from settings file
##
qid = q['id']
pos = q['pos']
x_lo = int(q['x_lo'])
x_hi = int(q['x_hi'])
y_lo = int(q['y_lo'])
y_hi = int(q['y_hi'])
overscan_x_lo = int(q['overscan_x_lo'])
overscan_x_hi = int(q['overscan_x_hi'])
overscan_y_lo = int(q['overscan_y_lo'])
overscan_y_hi = int(q['overscan_y_hi'])
is_defective = bool(q['is_defective'])
if is_defective:
logging.info("(ptc.run) omitting defective quadrant " +
str(qid) + " with position \"" + str(pos) + "\"")
res.append(None)
continue
logging.info("(ptc.run) processing quadrant " + str(qid + 1) +
" with position \"" + str(pos) + "\"")
logging.debug("(ptc.run) x range of quadrant is defined by " +
str(x_lo) + " < x < " + str(x_hi))
logging.debug("(ptc.run) y range of quadrant is defined by " +
str(y_lo) + " < y < " + str(y_hi))
logging.debug(
"(ptc.run) overscan x range of quadrant is defined by " +
str(overscan_x_lo) + " < x < " + str(overscan_x_hi))
logging.debug(
"(ptc.run) overscan y range of quadrant is defined by " +
str(overscan_y_lo) + " < y < " + str(overscan_y_hi))
##
## read this quadrant's data and remove bias (and dummy if requested)
##
files_data = {}
files_hdr = {}
for f in self.files:
logging.info("(ptc.run) caching file " + f)
ff = pyfits.open(f)
this_data = ff[self.settings['data_hdu']].data[
y_lo:y_hi, x_lo:x_hi] - np.mean(
ff[self.settings['data_hdu']].data[
overscan_y_lo:overscan_y_hi,
overscan_x_lo:overscan_x_hi])
this_dummy = ff[self.settings['dummy_hdu']].data[
y_lo:y_hi, x_lo:x_hi] - np.mean(
ff[self.settings['dummy_hdu']].data[
overscan_y_lo:overscan_y_hi,
overscan_x_lo:overscan_x_hi])
this_hdr = ff[self.settings['data_hdu']].header
exptime = this_hdr['EXPTIME']
if exptime not in files_data:
files_data[exptime] = []
files_hdr[exptime] = []
if self.settings['do_dummy_subtraction']:
files_data[exptime].append(this_data - this_dummy)
else:
files_data[exptime].append(this_data)
files_hdr[exptime].append(this_hdr)
ff.close()
##
## order quadrant data by exptime
##
files_data_od = collections.OrderedDict(sorted(files_data.items()))
##
## for each exposure time, take the mean of the signal and calculate the noise of the difference frame
##
res_thisq = [] # this keeps track of (mean, noise) tuples
diff_stk = [
] # this generates a difference stack which, when plotted, is useful for diagnosing which regions of the quadrant are suitable
for exposure_time, data in files_data_od.iteritems():
if len(
data
) != 2: # check we have two frames for this exposure time
err.setError(1)
err.handleError()
continue
diff = (data[1] - data[0]) # make diff frame
diff_stk.append(diff) # append to stack
thisq_mean = np.mean(data) # mean of frames
thisq_std_diff = np.std(diff) # error on diff frame
this_shot_and_read_noise = thisq_std_diff / (pow(
2, 0.5)) # NOTE: THIS ISN'T BE TRUE FOR DUMMY SUBTRACTION
if np.mean(thisq_mean) < 0 or np.mean(
thisq_std_diff) < 0: # we have a duff pair here
err.setError(2)
err.handleError()
continue
logging.debug("(ptc.run) exposure time of " +
str(exposure_time) +
" has mean signal level of " +
str(round(np.mean(thisq_mean), 2)) + "ADU +/- " +
str(round(np.mean(thisq_std_diff), 2)) + "ADU")
res_thisq.append(
(thisq_mean, this_shot_and_read_noise, exposure_time))
if self.diagnosticMode:
plt.imshow(np.mean(diff_stk, axis=0),
vmax=np.percentile(np.mean(diff_stk, axis=0), 95),
vmin=np.percentile(np.mean(diff_stk, axis=0), 5))
plt.colorbar()
plt.show()
if len(res_thisq) < MINIMUM_FRAMES_REQUIRED:
err.setError(-5)
err.handleError()
res.append(None)
else:
res.append(res_thisq)
rn = []
gain = []
qx = []
qy = []
for idx_q, q in enumerate(res):
pos = self.settings['quadrants'][idx_q]['pos']
if q is None:
rn.append(None)
gain.append(None)
qx.append(None)
qy.append(None)
continue
thisq_mean_all = []
thisq_std_all = []
thisq_exptimes = []
for p in q: # p == pair.
thisq_mean_all.append(p[0])
thisq_std_all.append(p[1])
thisq_exptimes.append(p[2])
thisq_rates = [
c / e for c, e in zip(thisq_mean_all, thisq_exptimes)
]
x = np.asarray(thisq_mean_all)
y = np.asarray(thisq_std_all)
# hazard a guess at read regime by:
## i) finding gradients for each index in data array using a linear fit
## ii) find index with gradient of ~0.2 (shot regime for loglog) by assessing truth array for adjacent indices of <0.2 and >0.2
gradients_log = []
for idx_x in range(1, len(x)):
gradients_log.append(
np.polyfit(np.log10(x[idx_x - 1:idx_x + 1]),
np.log10(y[idx_x - 1:idx_x + 1]), 1)[0])
truth = []
for idx_g in range(1, len(gradients_log)):
lt = [True for gi in gradients_log[:idx_g] if gi < 0.2]
gt = [True for gi in gradients_log[idx_g:] if gi > 0.2]
n_true = np.sum(lt) + np.sum(gt)
truth.append(n_true)
idx_x_nearest = np.argmax(
truth
) + 2 # +2 for offsets incurred from taking gradient and cycling through truth array
read_guess = range(0, idx_x_nearest)
if idx_x_nearest > len(x) - 1 or idx_x_nearest < 0:
read_guess = []
# hazard a guess at shot regime by:
## i) finding gradients for each index in data array using a linear fit
## ii) find index with gradient of ~0.5 (shot regime for loglog) by assessing truth array for adjacent indices of <0.5 and >0.5
gradients_log = []
for idx_x in range(1, len(x)):
gradients_log.append(
np.polyfit(np.log10(x[idx_x - 1:idx_x + 1]),
np.log10(y[idx_x - 1:idx_x + 1]), 1)[0])
truth = []
for idx_g in range(1, len(gradients_log)):
lt = [True for gi in gradients_log[:idx_g] if gi < 0.5]
gt = [True for gi in gradients_log[idx_g:] if gi > 0.5]
n_true = np.sum(lt) + np.sum(gt)
truth.append(n_true)
idx_x_nearest = np.argmax(
truth
) + 2 # +2 for offsets incurred from taking gradient and cycling through truth array
shot_guess = [idx_x_nearest - 1, idx_x_nearest, idx_x_nearest + 1]
if idx_x_nearest + 1 > len(x) - 1 or idx_x_nearest - 1 < 0:
shot_guess = []
# interactive selection of PTC
# - follow on screen prompts
logging.info("(ptc.run) interactive selection of PTC regions")
print
print "\t\tCOMMAND SET"
print
print "\tq: define point for read noise"
print "\tw: define point for shot noise"
print "\te: define full well"
print "\ta: smooth data with cubic spline"
print "\tx: clear point definition"
print "\tm: clear all point definitions"
print "\tr: remove point from dataset (will reset point definitions)"
print
class define_PTC_regions(object):
def __init__(self,
ax,
x,
y,
read_guess=read_guess,
shot_guess=shot_guess,
fwd_guess=None):
self.ax = ax
self.x = x # data array
self.y = y # data array
self.c_idx = None # current cursor idx
self.read = read_guess # (idx_1, idx_2 ... idx_n)
self.shot = shot_guess # (idx_1, idx_2 ... idx_n)
self.fwd = fwd_guess # idx
self.rn = None
self.gain = None
def calculate_nearby_gradient(self, idx):
if idx != 0 and idx != len(self.x):
c = np.polyfit(self.x[idx - 1:idx + 2],
self.y[idx - 1:idx + 2], 1)
return c[0]
else:
return None
def calculate_read_noise(self):
# calculate read noise (ADU)
## i) fit a second order polynomial to read data array
## ii) find gradient = 0
## iii) find y-intercept
if len(self.read) < 2:
self.rn = None
print "e: need more than two points for read regime"
return
f_co = np.polyfit(self.x[self.read], self.y[self.read], 2)
f_xmin = f_co[1] / -(2 * f_co[0]) # find minimum
rn_yi_log = np.polyval(f_co,
f_xmin) # y-intercept (rn in ADU)
print "i: read noise calculated as " + str(
round(10**rn_yi_log, 2)) + "ADU"
self.rn = rn_yi_log
def calculate_gain(self):
# calculate gain (e-/ADU)
### i) fit second order polynomial to shot data array, and find x coordinate at which gradient is exactly 0.5
### ii) calculate corresponding x-intercept
if len(self.shot) < 2:
self.gain = None
print "e: need more than two points for shot regime"
return
f_co = np.polyfit(self.x[self.shot], self.y[self.shot], 2)
x_g_of_0p5 = (0.5 - f_co[1]) / (2 * f_co[0])
y_g_of_0p5 = np.polyval(f_co, x_g_of_0p5)
yi_g_of_0p5 = y_g_of_0p5 - (0.5 * x_g_of_0p5)
xi_g_of_0p5 = -yi_g_of_0p5 / 0.5
print "i: gain calculated as " + str(
round(10**xi_g_of_0p5, 2)) + "e-/ADU"
self.gain = (xi_g_of_0p5, x_g_of_0p5, y_g_of_0p5)
def draw(self):
self.ax.cla()
plt.title("PTC")
plt.xlabel("Log10 (Signal, ADU)")
plt.ylabel("Log10 (Noise, ADU)")
# text location in axes coords
self.txt = ax.text(0.1, 0.9, '', transform=ax.transAxes)
plt.plot(self.x, self.y, 'kx-')
plt.xlim([0, np.max(self.x)])
plt.ylim([0, np.max(self.y)])
if self.c_idx is not None:
# update line positions
lx = ax.axhline(color='k') # horiz line (cursor)
ly = ax.axvline(color='k') # vert line (cursor)
lx.set_ydata(self.y[self.c_idx])
ly.set_xdata(self.x[self.c_idx])
# show gradient at point
m = self.calculate_nearby_gradient(self.c_idx)
if m is not None:
self.txt.set_text('nearby_m=%1.2f' % (m))
if self.read is not None and self.rn is not None:
# update line positions
lx = ax.axhline(
color='k',
linestyle='--') # horiz line (read noise)
lx.set_ydata(self.rn)
if self.shot is not None and self.gain is not None:
# update line positions
plt.plot([self.gain[0], self.gain[1]],
[0, self.gain[2]], 'k--')
# update regime points
self.ax.plot(self.x[self.read], self.y[self.read], 'ro')
self.ax.plot(self.x[self.shot], self.y[self.shot], 'bo')
if self.fwd is not None:
lyf = ax.axvline(color='k',
linestyle='--') # the vert line (fwd)
lyf.set_xdata(self.x[self.fwd])
# draw
plt.draw()
def find_closest_point(self, xc, yc, x, y):
'''
xc/yc are the cursor input coords
x/y are the data arrays
'''
delta_x = ([xc] * len(x)) - x
delta_y = ([yc] * len(y)) - y
r = ((delta_x**2) + (delta_y**2))**0.5
return int(np.argmin(r)), np.min(r)
def key_press(self, event):
if not event.inaxes:
return
x, y = event.xdata, event.ydata
if event.key == 'q':
idx, val = self.find_closest_point(
x, y, self.x, self.y)
if idx not in self.read:
self.read.append(idx)
self.calculate_read_noise()
print "i: added read regime point"
if event.key == 'w':
idx, val = self.find_closest_point(
x, y, self.x, self.y)
if idx not in self.shot:
self.shot.append(idx)
self.calculate_gain()
print "i: added shot regime point"
if event.key == 'e':
idx, val = self.find_closest_point(
x, y, self.x, self.y)
self.fwd = idx
print "i: added fwd line"
if event.key == 'r':
idx, val = self.find_closest_point(
x, y, self.x, self.y)
self.read = []
self.shot = []
self.fwd = None
self.rn = None
self.gain = None
self.x = np.delete(self.x, idx)
self.y = np.delete(self.y, idx)
self.c_idx = None
print "i: reset point definitions and removed point from dataset"
elif event.key == 'x':
idx, val = self.find_closest_point(
x, y, self.x, self.y)
if idx in self.read:
idx_to_pop = self.read.index(idx)
self.read.pop(idx_to_pop)
self.calculate_read_noise()
print "i: cleared read regime point"
if idx in self.shot:
idx_to_pop = self.shot.index(idx)
self.shot.pop(idx_to_pop)
self.calculate_gain()
print "i: cleared shot regime point"
if idx == self.fwd:
self.fwd = None
print "i: cleared fwd line"
elif event.key == 'm':
self.read = []
self.shot = []
self.fwd = None
self.rn = None
self.gain = None
print "i: cleared all point definitions"
elif event.key == 'a':
self.smooth_data()
self.calculate_gain()
self.calculate_read_noise()
print "i: smoothed data"
self.draw()
def mouse_move(self, event):
if not event.inaxes:
return
x, y = event.xdata, event.ydata
idx, val = self.find_closest_point(x, y, self.x, self.y)
self.c_idx = idx
self.draw()
def smooth_data(self):
to_idx = len(self.x) - 1
if self.fwd is not None: # use FWD if it's been applied
to_idx = self.fwd
to_rev_idx = [
x2 - x1 < 0 for x1, x2 in zip(self.x[:-1], self.x[1:])
] # catch for reverse turnover (occurs in some data after full well)
if True in to_rev_idx and to_rev_idx < self.fwd:
to_idx = [
idx for idx, xi in enumerate(to_rev_idx)
if xi is True
]
s = interpolate.UnivariateSpline(
self.x[:to_idx + 1], self.y[:to_idx + 1], k=3,
s=10) # apply smoothing cubic bspline
self.x = self.x[:to_idx + 1]
self.y = s(self.x)
fig = plt.figure()
ax = plt.gca()
reg = define_PTC_regions(ax, np.log10(x), np.log10(y))
reg.calculate_read_noise()
reg.calculate_gain()
reg.draw()
plt.connect('motion_notify_event', reg.mouse_move)
plt.connect('key_press_event', reg.key_press)
plt.show()
rn.append(reg.rn)
gain.append(reg.gain)
qx.append(reg.x)
qy.append(reg.y)
if self.makePlots:
for idx_q in range(len(qx)):
this_rn = rn[idx_q]
this_gain = gain[idx_q]
this_q_x = qx[idx_q]
this_q_y = qy[idx_q]
pos = self.settings['quadrants'][idx_q]['pos']
is_defective = bool(
self.settings['quadrants'][idx_q]['is_defective'])
plt.subplot(2, 2, idx_q + 1)
plt.yscale('log')
plt.xscale('log')
plt.xlabel("Signal (ADU)")
plt.ylabel("Noise (ADU)")
if is_defective:
plt.plot([],
label='data for quadrant: ' +
str(self.settings['quadrants'][idx_q]['pos']),
color='white')
plt.legend(loc='upper left')
continue
plt.plot(10**this_q_x,
10**this_q_y,
'k.',
label='data for quadrant: ' +
str(self.settings['quadrants'][idx_q]['pos']))
if this_rn is not None:
plt.plot([10**0, np.max(10**this_q_x)],
[10**this_rn, 10**this_rn],
'k--',
label="read noise: " +
str(round(10**this_rn, 2)) + " ADU")
if this_gain is not None:
plt.plot([10**this_gain[0], 10**this_gain[1]],
[10**0, 10**this_gain[2]],
'k--',
label="gain: " + str(round(10**this_gain[0], 2)) +
" e-/ADU")
plt.legend(loc='upper left')
plt.tight_layout()
plt.show()
def VelocityDistribution(self, G):
print('Plotting the velocity distribution of all galaxies')
seed(2222)
mi = -40.0
ma = 40.0
binwidth = 0.5
NB = (ma - mi) / binwidth
# set up figure
plt.figure()
ax = plt.subplot(111)
pos_x = G.Pos[:, 0] / self.Hubble_h
pos_y = G.Pos[:, 1] / self.Hubble_h
pos_z = G.Pos[:, 2] / self.Hubble_h
vel_x = G.Vel[:, 0]
vel_y = G.Vel[:, 1]
vel_z = G.Vel[:, 2]
dist_los = np.sqrt(pos_x * pos_x + pos_y * pos_y + pos_z * pos_z)
vel_los = (pos_x / dist_los) * vel_x + (pos_y / dist_los) * vel_y + (
pos_z / dist_los) * vel_z
dist_red = dist_los + vel_los / (self.Hubble_h * 100.0)
tot_gals = len(pos_x)
(counts, binedges) = np.histogram(vel_los / (self.Hubble_h * 100.0),
range=(mi, ma),
bins=NB)
xaxeshisto = binedges[:-1] + 0.5 * binwidth
plt.plot(xaxeshisto,
counts / binwidth / tot_gals,
'k-',
label='los-velocity')
(counts, binedges) = np.histogram(vel_x / (self.Hubble_h * 100.0),
range=(mi, ma),
bins=NB)
xaxeshisto = binedges[:-1] + 0.5 * binwidth
plt.plot(xaxeshisto,
counts / binwidth / tot_gals,
'r-',
label='x-velocity')
(counts, binedges) = np.histogram(vel_y / (self.Hubble_h * 100.0),
range=(mi, ma),
bins=NB)
xaxeshisto = binedges[:-1] + 0.5 * binwidth
plt.plot(xaxeshisto,
counts / binwidth / tot_gals,
'g-',
label='y-velocity')
(counts, binedges) = np.histogram(vel_z / (self.Hubble_h * 100.0),
range=(mi, ma),
bins=NB)
xaxeshisto = binedges[:-1] + 0.5 * binwidth
plt.plot(xaxeshisto,
counts / binwidth / tot_gals,
'b-',
label='z-velocity')
plt.yscale('log', nonposy='clip')
plt.axis([mi, ma, 1e-5, 0.5])
# plt.axis([mi, ma, 0, 0.13])
plt.ylabel(r'$\mathrm{Box\ Normalised\ Count}$') # Set the y...
plt.xlabel(r'$\mathrm{Velocity / H}_{0}$') # and the x-axis labels
leg = plt.legend(loc='upper left', numpoints=1, labelspacing=0.1)
leg.draw_frame(False) # Don't want a box frame
for t in leg.get_texts(): # Reduce the size of the text
t.set_fontsize('medium')
outputFile = OutputDir + '11.VelocityDistribution' + OutputFormat
plt.savefig(outputFile) # Save the figure
print('Saved file to', outputFile)
plt.close()
# Add this plot to our output list
OutputList.append(outputFile)
