def get_PDZerrDistribution(hdf5file, bpzfile, columns):
"""
It returns the error distribution based on PDZs.
---
hdf5file = '/Users/albertomolino/doctorado/photo/catalogos/specz/spzPDZs/alhambra.spz.hdf5'
bpzfile = '/Users/albertomolino/doctorado/photo/catalogos/specz/spzPDZs/alhambra.spz.bpz'
columns = '/Users/albertomolino/doctorado/photo/catalogos/specz/spzPDZs/alhambra.spz.columns'
"""
ids, zb, zs, mo = U.get_data(bpzfile, (0, 1, 11, 12))
# ids,zb,zs,mo = U.get_data(bpzfile,(0,1,9,10))
good = N.greater(abs(mo), 17.) * N.less(abs(mo), 25.)
# good = N.greater(abs(mo),22.)*N.less(abs(mo),23.)
ids, zb, zs, mo = U.multicompress(good, (ids, zb, zs, mo))
ng = len(ids)
#Readin the PDZs...
p = h5py.File(hdf5file, mode='r')
pdzo = p.get('FullProbability')
pdz = pdzo[good, :, :]
zz = p.get('redshift')[:]
dz = zz[2] - zz[1]
basez2 = N.arange(-0.1, 0.1, dz)
basez2b = basez2[:-1] + ((basez2[1] - basez2[0]) / 2.)
nz = len(basez2)
delta_z_pdzs = N.zeros(nz - 1)
# Computing the z error distr. function
# based on peak values.
delta_z_peaks = (zb - zs) / (1. + zs)
a1, a2 = N.histogram(delta_z_peaks, basez2)
for ii in range(ng):
pdz_mot = U.sum(pdz[ii, :, :], axis=1)
delta_z_pdzs += U.match_resol(zz - zb[ii], pdz_mot, basez2b)
plt.figure(12, figsize=(8.5, 10.), dpi=80, facecolor='w', edgecolor='k')
plt.clf()
plt.subplot(211)
plt.plot(basez2b, a1 / float(sum(a1)), 'b-', lw=12, alpha=0.6)
plt.plot(basez2b,
delta_z_pdzs / float(sum(delta_z_pdzs)),
'r-',
lw=5,
alpha=0.9)
plt.grid()
plt.xlim(-0.1, 0.1)
plt.ylabel('P(z)', size=20, labelpad=+1)
plt.legend(['peaks', 'pdfs'], loc='upper left', fontsize=20)
plt.subplot(212)
resi = 2
plt.plot(
basez2b[::resi],
abs((a1[::resi] / float(sum(a1))) -
(delta_z_pdzs[::resi] / float(sum(delta_z_pdzs)))), 'k-')
plt.grid()
plt.xlim(-0.1, 0.1)
plt.xlabel('$\delta_{z}$', size=30)
def function(z, m, nt):
"""Prior based on the SDSS spectroscopic catalog
This function defines a prior based only on the
magnitude of the objects. It assumes that the type
fraction does not depend on redshift
It assumes a shape p(z)=z**2*exp(-(z/zm)**1.5)
Returns an array pi[z[:],:6]
The i-band should be used as M_0
"""
global zt_at_1p5
global zt_at_2
xm = numpy.arange(12., 18.0)
ft = numpy.array((0.55, 0.21, 0.21, .01, .01, .01))
zm0 = numpy.array([0.021, 0.034, 0.056, 0.0845, 0.1155, 0.127]) * (old_div(
2., 3.))
if len(ft) != nt:
print("Wrong number of templates!")
sys.exit()
nz = len(z)
m = numpy.array([m]) #match_resol works with arrays
m = numpy.clip(m, xm[0], xm[-1])
zm = match_resol(xm, zm0, m)
# zm=zm[0]
try:
zt_2.shape
except NameError:
t2 = [2.] * nt
zt_2 = numpy.power.outer(z, t2)
try:
zt_1p5.shape
except NameError:
t1p5 = [1.5] * nt
zt_1p5 = numpy.power.outer(z, t1p5)
zm_3 = numpy.power.outer(zm, 3)
zm_1p5 = numpy.power.outer(zm, 1.5)
p_i = 3. / 2. / zm_3 * zt_2[:, :] * numpy.exp(
-numpy.clip(old_div(zt_1p5[:, :], zm_1p5), 0., 700.))
norm = numpy.add.reduce(p_i[:nz, :], 0)
#Get rid of very low probability levels
p_i[:nz, :] = numpy.where(
less(old_div(p_i[:nz, :], norm[:]), old_div(1e-5, float(nz))), 0.,
old_div(p_i[:nz, :], norm[:]))
norm = numpy.add.reduce(p_i[:nz, :], 0)
return p_i[:nz, :] / norm[:] * ft[:]
root = '/Users/albertomolino/codigos/bpz-1.99.2/FILTER/'
names = pd.read_table(root + 'SPLUS_September2018/SPLUS_201809.list')
filtros_old = U.get_str(root + 'SPLUS_July2017/SPLUS.list', 0)
filtros_new = U.get_str(root + 'SPLUS_September2018/SPLUS_201809.list', 0)
base = N.arange(3200, 10000, 10)
values = N.zeros(12)
eff_wav = N.zeros(12)
for ii in range(12):
eff_wav[ii] = B.effective_wavelength(filtros_new[ii])
for ii in range(12):
x_o, y_o = U.get_data(root + filtros_old[ii], (0, 1))
x_n, y_n = U.get_data(root + filtros_new[ii], (0, 1))
y_o_r = U.match_resol(x_o, y_o, base)
y_n_r = U.match_resol(x_n, y_n, base)
values[ii] = N.sum(y_o_r - y_n_r) / N.sum(y_o_r)
plt.figure(20)
plt.subplot(211)
for ii in range(12):
x, y = U.get_data(root + filtros_old[ii], (0, 1))
plt.fill_between(x * 1., y, 0, alpha=0.4, color='grey', lw=1)
x, y = U.get_data(root + filtros_new[ii], (0, 1))
plt.fill_between(x * 1., y, 0, alpha=0.4, color='grey', lw=1)
plt.xlim(3000, 10000)
plt.ylim(0., 0.8)
plt.ylabel('Throughput', size=28, labelpad=8)
plt.xticks(fontsize=20)
plt.yticks(fontsize=20)
else:
plt.title('R=%s' % (m[ss + 3]), size=20)
if ss in [0, 4]:
plt.ylabel('Spectral-type', size=20)
#if ss in [4,5,6,7]:
plt.xlabel('$z$', size=25, labelpad=-2)
plt.savefig('/Users/albertomolino/Desktop/hdf5plot2.png', dpi=90)
basez = N.arange(0.005, 0.45, 0.03)
plt.figure(23, figsize=(13, 6), dpi=70, facecolor='w', edgecolor='k')
plt.clf()
for ss in range(4):
plt.subplot(1, 4, ss + 1)
pepe0 = final_mat[ss, 50:-150, :]
pepa0 = U.sum(pepe0, axis=1)
new_pdz0 = U.match_resol(zz[50:-150], pepa0, basez)
plt.plot(basez, (new_pdz0 / new_pdz0.sum() * 1.), '-ro')
if ss < 1:
plt.title('R$\leq$%s' % (m[ss + 3]), size=20)
else:
plt.title('R=%s' % (m[ss + 3]), size=20)
if ss in [0, 4]:
plt.ylabel('Spectral-type', size=20)
plt.xlabel('$z$', size=25, labelpad=-2)
plt.xlim(0.005, 0.35)
plt.savefig('/Users/albertomolino/Desktop/hdf5plot3.png', dpi=90)
"""
ii=0
def get_PDZerrDistribution_byMagnitudes(hdf5file, bpzfile, columns):
"""
It returns the error distribution based on PDZs.
---
import alhambrahdf5 as AH
#hdf5file = '/Users/albertomolino/doctorado/photo/catalogos/reduction_v5/GOLD/alhambragold.hdf5'
#bpzfile = '/Users/albertomolino/doctorado/photo/catalogos/reduction_v5/GOLD/alhambragold.bpz'
#columns = '/Users/albertomolino/doctorado/photo/catalogos/reduction_v5/GOLD/alhambragold.columns'
hdf5file = '/Users/albertomolino/doctorado/photo/catalogos/specz/spzPDZs/alhambra.spz.hdf5'
bpzfile = '/Users/albertomolino/doctorado/photo/catalogos/specz/spzPDZs/alhambra.spz.bpz'
columns = '/Users/albertomolino/doctorado/photo/catalogos/specz/spzPDZs/alhambra.spz.columns'
basez2b,delta_z_peaks,delta_z_pdzs = AH.get_PDZerrDistribution_byMagnitudes(hdf5file,bpzfile,columns)
"""
basem = N.arange(18, 26, 2)
# basem = N.arange(18,25,2)
nm = len(basem)
ids, zb, zs, mo = U.get_data(bpzfile, (0, 1, 11, 12))
# ids,zb,zs,mo = U.get_data(bpzfile,(0,1,9,10))
#Readin the PDZs...
p = h5py.File(hdf5file, mode='r')
pdzo = p.get('FullProbability')
zz = p.get('redshift')[:]
dz = zz[2] - zz[1]
basez2 = N.arange(-0.1, 0.1, dz)
basez2b = basez2[:-1] + ((basez2[1] - basez2[0]) / 2.)
nz = len(basez2)
# Defining the final outputs.
delta_z_pdzs = N.zeros((nm - 1, nz - 1), float)
delta_z_peaks = N.zeros((nm - 1, nz - 1), float)
for ii in range(nm - 1):
good = N.greater_equal(mo, basem[ii]) * N.less_equal(mo, basem[ii + 1])
idr, zbr, zsr, mor = U.multicompress(good, (ids, zb, zs, mo))
ng = len(idr)
pdz = pdzo[good, :, :]
# Computing the z error distr. function
# based on peak values.
temporal_delta_z_peaks = (zbr - zsr) / (1. + zsr)
a1, a2 = N.histogram(temporal_delta_z_peaks, basez2)
delta_z_peaks[ii, :] = a1[:]
for jj in range(ng):
pdz_mot = U.sum(pdz[jj, :, :], axis=1)
delta_z_pdzs[ii, :] += U.match_resol(zz - zbr[jj], pdz_mot,
basez2b)
# plt.figure(12, figsize = (8.5,10.),dpi=80, facecolor='w', edgecolor='k')
# plt.clf()
# plt.subplot(211)
# plt.plot(basez2b,a1/float(sum(a1)),'b-',lw=12,alpha=0.6)
# plt.plot(basez2b,delta_z_pdzs/float(sum(delta_z_pdzs)),'r-',lw=5,alpha=0.9)
# plt.grid()
# plt.xlim(-0.1,0.1)
# plt.ylabel('P(z)',size=20,labelpad=+1)
# plt.legend(['peaks','pdfs'],loc='upper left',fontsize=20)
# plt.subplot(212)
# resi = 2
# plt.plot(basez2b[::resi],abs((a1[::resi]/float(sum(a1)))-(delta_z_pdzs[::resi]/float(sum(delta_z_pdzs)))),'k-')
# plt.grid()
# plt.xlim(-0.1,0.1)
# plt.xlabel('$\delta_{z}$',size=30)
return basez2b, delta_z_peaks, delta_z_pdzs
z2, p2 = U.get_data(root + 'master_R19_PDF.specz.odds09.txt', (0, 3))
z3, p3 = U.get_data(root + 'master_R21_PDF.specz.odds09.txt', (0, 3))
else:
z1, p1 = U.get_data(root + 'master_R17_PDF.specz.txt', (0, 3))
z2, p2 = U.get_data(root + 'master_R19_PDF.specz.txt', (0, 3))
z3, p3 = U.get_data(root + 'master_R21_PDF.specz.txt', (0, 3))
if odds_cut:
dz = 0.003
else:
dz = 0.007
basez_1 = N.arange(0.01, max(zbs_1) + dz, dz)
basez2_1 = basez_1[:-1] + ((basez_1[1] - basez_1[0]) / 2.)
v1, v2, v3 = plt.hist(zbs_1, basez_1, color='blue', alpha=0.3, normed=0)
p1r = U.match_resol(z1, p1, basez2_1)
basez_2 = N.arange(0.01, max(zbs_2) + dz, dz)
basez2_2 = basez_2[:-1] + ((basez_2[1] - basez_2[0]) / 2.)
w1, w2, w3 = plt.hist(zbs_2, basez_2, color='blue', alpha=0.3, normed=0)
p2r = U.match_resol(z2, p2, basez2_2)
basez_3 = N.arange(0.01, max(zbs_3) + dz, dz)
basez2_3 = basez_3[:-1] + ((basez_3[1] - basez_3[0]) / 2.)
q1, q2, q3 = plt.hist(zbs_3, basez_3, color='blue', alpha=0.3, normed=0)
p3r = U.match_resol(z3, p3, basez2_3)
plt.figure(21)
plt.clf()
plt.subplot(131)
plt.loglog(basez2_1, v1, 'r-', lw=5, alpha=0.8)
plt.plot(rf_wavel[clean_sample], delta_f[clean_sample], '+', alpha=0.2)
plt.plot(base_wavel, average_corr, '-ro', lw=3)
plt.grid()
plt.ylim(0.5, 1.5)
plt.xlim(min_wave_corr * 0.9, max_wave_corr * 1.1)
plt.ylabel('$F_{th}/F_{ob}$', size=20)
outfilename = final_sed_root_data + sed[
ss] + 'S82SPLUS_crf_res%iAA.dat' % (new_delta_lbda)
U.put_data(outfilename, (base_wavel, average_corr),
'# base_wavel average_corr')
## Here it applies the corrections to the original templates
sed_wavel, sed_flux_orig = U.get_data(root_to_seds + sed[ss], (0, 1))
corr_ori_wavel = U.match_resol(base_wavel, average_corr, sed_wavel)
if new_dim > min_ng:
sed_flux_new = sed_flux_orig / (1. * corr_ori_wavel)
else:
sed_flux_new = sed_flux_orig / 1.
if plots:
plt.subplot(212)
pepe = sct.lookcloser(sed_wavel, normal_wavel)
plt.semilogy(sed_wavel,
sed_flux_orig / sed_flux_orig[pepe - 1],
'-',
linewidth=8.,
alpha=0.5,
color='grey')
def reobs(sed,
m=0.,
z_0=0.,
oldfilter='I_LRIS',
z_new=0.,
newfilter='V_LRIS',
cosmology=(0.3, 0.7, .7),
madau='yes'):
"""Arguments: sed,m,z_0,oldfilter,z_new,newfilter,cosmology
Takes a galaxy with m at redshift z_0 in oldfilter,
SED=sed and produces its new magnitude in newfilter at z_new.
Takes into account cosmological dimming and intergalactic Madau absorption
The tuple cosmology=(omega,lambda,hubble_constant)
"""
if sed[-4:] == '.sed': sed = sed[:-4]
#single_z=type(z_new)==type(z_0)
single_z = z_new.__class__.__name__[0:3] == z_0.__class__.__name__[0:3]
if single_z:
if z_0 == z_new and oldfilter == newfilter: return m
z_new = numpy.array([z_new])
#Calculate fnew
model = '.'.join([sed, newfilter, 'AB'])
model_path = os.path.join(ab_dir, model)
#Check whether there are already AB files
if madau == 'yes':
if model[:-3] in ab_db:
zo, f_mod_0 = useful.get_data(model_path, (0, 1))
fnew = z_new * 0.
for i in range(len(z_new)):
fnew[i] = useful.match_resol(zo, f_mod_0, z_new[i])
else:
fnew = f_z_sed_AB(sed, newfilter, z_new, 'nu')
else:
fnew = f_z_sed(sed, newfilter, z_new, units='nu', madau=madau)
fnew = numpy.where(
equal(fnew, 0.), 99.,
fnew) # if the new flux is 0, returns 99. (code non-detection)
#Calculate f_old
model = '.'.join([sed, oldfilter, 'AB'])
model_path = os.path.join(ab_dir, model)
#Check whether there are already AB files
if madau == 'yes':
if model[:-3] in ab_db:
zo, f_mod_0 = useful.get_data(model_path, (0, 1))
f_old = useful.match_resol(zo, f_mod_0, z_0)
else:
f_old = f_z_sed_AB(sed, oldfilter, numpy.array([z_0]), units='nu')
else:
f_old = f_z_sed(sed, oldfilter, numpy.array([z_0]), units='nu')
k = 2.5 * log10((old_div(
(1. + z_new), fnew)) * (old_div(f_old, (1. + z_0))))
if single_z and z_0 == z_new[0]:
m_obs = m + k
return m_obs[0]
#Distance modulus
dist = dist_mod(z_new, cosmology) - dist_mod(z_0, cosmology)
m_obs = m + dist + k
if single_z: return m_obs[0]
else: return m_obs
def get_masterPDZ_pro(hdf5file, mmin, mmax, dm):
"""
TAKEN DIRECTLY FROM CLASH_TOOLS.py
This routine derives the master PDZ for
a sample of magnitudes based on an empirical
BPZ-HDF5 catalogue.
---
This new version allows the user to change
the magnitude range from outside.
===
import clash_tools as CT
hdf5file = root+'alhambra.spz.hdf5'
mpdz,z,sigz,meanz = CT.get_masterPDZ(hdf5file)
"""
# Reading data
p1 = h5py.File(hdf5file, mode='r')
pdz1 = p1.get('FullProbability')
zz1 = p1.get('redshift')[:]
tt1 = p1.get('type')[:]
mo1 = p1.get('m_0')[:]
# Defining resolution and other variables.
basem = N.arange(mmin, mmax + dm, dm)
nm = len(basem)
res = 2
zz1r = zz1[::res]
dz2 = (zz1r.max() - zz1r.min())
basez = N.linspace(-dz2, dz2, len(zz1r) * 2)
basez2 = basez + ((basez[1] - basez[0]) / 2.)
masterpdz = N.zeros((nm, len(basez)), float)
sigma_pdz = N.zeros(nm)
meanz = N.zeros(nm)
# Global P(z)
weirdpeaks = []
print 'Number of magnitude-bins: ', nm
for jj in range(nm):
# Selecting galaxies within that magnitude bin.
if jj == 0:
good = N.less_equal(mo1, basem[jj])
pdz1r = pdz1[good, :, :]
elif jj == nm - 1:
good = N.greater_equal(mo1, basem[jj - 1])
good *= N.less_equal(mo1, basem[jj])
pdz1r = pdz1[good, :, :]
else:
good = N.greater_equal(mo1, basem[jj - 1])
good *= N.less_equal(mo1, basem[jj])
pdz1r = pdz1[good, :, :]
ng1 = N.shape(pdz1r)[0]
peaks = []
print '%i galaxies in magnitude-bin %i ' % (ng1, jj + 1)
mo1r = mo1[good]
for ii in range(ng1):
# print 'galaxy number %i out of %i '%(ii+1,ng1)
pdz_ind = N.sum(pdz1r[ii, :, :], axis=1)
pdz_ind_r = pdz_ind[::res]
peak = pdz_ind_r.max()
pos = N.where(pdz_ind_r == peak)[0][0]
zpeak = zz1r[pos]
# new_zmin = len(zz1r)-zpeak
new_zmin = len(zz1r) - pos - 1 # len(zz1r[0:pos])
min_val = min(pdz_ind_r)
max_val = max(pdz_ind_r)
if abs(min_val - max_val) < 1.0e-8: pdz_ind_r[:] = zz1r * 0
if zpeak < 0.0005: pdz_ind_r[:] = zz1r * 0
# try:
if zpeak > 0.0005:
masterpdz[jj, new_zmin:new_zmin + len(zz1r)] += pdz_ind_r[:]
# except: weirdpeaks.append(zpeak)
if zpeak > 0.0005:
peaks.append(zpeak)
# plt.figure(200)
# plt.clf()
# plt.plot(zz1r,pdz_ind_r,'k-')
# plt.xlim(0.,0.2)
# plt.grid()
# print 'AB,dz/1+z,dz: %.2f,%.3f,%.2f:'%(mo1r[ii],(zpeak-0.044)/1.044,zpeak-0.044)
# pausa = raw_input('paused')
masterpdz[jj, :] /= float(masterpdz[jj, :].sum())
cumasterpdz = U.add.accumulate(masterpdz[jj, :])
cumasterpdz /= cumasterpdz.max()
zmin_err_e = U.match_resol(cumasterpdz, basez2, 0.17)
zmax_err_e = U.match_resol(cumasterpdz, basez2, 0.83)
sigma_pdz[jj] = (zmax_err_e - zmin_err_e)
peak_position = N.where(
masterpdz[jj, :] == masterpdz[jj, :].max())[0][0]
# print 'peak_position',peak_position
# print 'zpeak=',zz1r[peak_position]
meanz[jj] = U.mean_robust(N.array(peaks))
# U.std_mad(N.array(peaks))
return masterpdz, basez2, sigma_pdz, meanz
def get_PDZerrDistribution_byTemplates(hdf5file, bpzfile, m_max):
"""
It returns the error distribution based on PDZs.
---
import splus_s82_hdf5_tools as to
root = '/Users/albertomolino/Postdoc/T80S_Pipeline/Commisioning/'
root += 'S82/Dec2017/splus_cats_NGSL/'
hdf5list = root+'hdf5.list'
bpzlist = root+'bpz/master.STRIPE82_Photometry.m21.bpz.list'
hdf5_files = U.get_str(hdf5list,0)
n_hdf5 = len(hdf5_files)
bpz_files = U.get_str(bpzlist,0)
n_bpz = len(bpz_files)
for ii in range(n_bpz):
name = os.path.basename(hdf5_files[ii])
print name
try: z,dp,df = to.get_PDZerrDistribution_byTemplates(hdf5_files[ii],bpz_files[ii],19)
except: print 'Impossible to run on ',name
"""
plots = 1
# starting plots if necessary
if plots:
plt.figure(12,
figsize=(8.5, 10.),
dpi=80,
facecolor='w',
edgecolor='k')
try:
ids, zb, zs, mo, tb, odd = U.get_data(bpzfile, (0, 1, 11, 12, 4, 5))
except:
ids, zb, zs, mo, tb, odd = U.get_data(bpzfile, (0, 1, 9, 10, 4, 5))
good = N.less_equal(mo, m_max)
ids, zb, zs, mo, tb, odd = U.multicompress(good,
(ids, zb, zs, mo, tb, odd))
ng = len(ids)
#Readin the PDZs...
p = h5py.File(hdf5file, mode='r')
#pdzo = p.get('FullProbability')
pdz = p.get('Likelihood')
pdz = pdz[good, :, :]
zz = p.get('redshift')[:]
dz = (zz[2] - zz[1]) * 100.
basez2 = N.arange(-0.2, 0.2, dz)
basez2b = basez2[:-1] + ((basez2[1] - basez2[0]) / 2.)
nz = len(basez2)
res = 1
# Computing the z error distr. function
# based on peak values.
delta_z_peaks = (zb - zs) / (1. + zs)
a1, a2 = N.histogram(delta_z_peaks, basez2)
delta_z_pdzs = N.zeros(nz - 1)
for ii in range(ng):
pdz_mot = U.sum(pdz[ii, :, :], axis=1)
pdz_mot_peak = pdz_mot / float(max(pdz_mot))
# To get rid of long tails in PDFs with low probabilities.
pdz_mot_peak = N.where(pdz_mot_peak < 1.0e-4, 0., pdz_mot_peak)
pdz_mot_norm = pdz_mot_peak / float(sum(pdz_mot_peak))
pdz_mot_norm = N.where(pdz_mot_norm < 0., 0., pdz_mot_norm)
#pdz_mot_norm = pdz_mot/float(sum(pdz_mot))
pdz_mot_norm_resample = U.match_resol(zz - zs[ii], pdz_mot_norm,
basez2b)
pdz_mot_norm_resample = N.where(pdz_mot_norm_resample < 0., 0.,
pdz_mot_norm_resample)
delta_z_pdzs += pdz_mot_norm_resample[:]
"""
if plots:
plt.clf()
plt.subplot(121)
peak_zb_pos = N.argmax(pdz_mot_norm[::res])
print zz[peak_zb_pos]
plt.plot(zz[::res]-zs[ii],pdz_mot_norm[::res],'-',lw=5,alpha=0.6)
#plt.plot(zz[::res]-zz[peak_zb_pos],pdz_mot_norm[::res],'-',lw=5,alpha=0.6)
plt.grid()
plt.xlim(-0.2,0.2)
#plt.ylim(0.001,0.1)
plt.xlabel('$\delta_{z}$',size=30)
plt.ylabel('P(z)',size=20,labelpad=+1)
plt.legend(['R=%.2f''\n''T=%.1f''\n''O=%.1f'%(mo[ii],tb[ii],odd[ii])],loc='upper right')
plt.title('zb = %.2f, zs = %.2f, dz/1+z = %.2f'%(zb[ii],zs[ii],delta_z_peaks[ii]),size=20)
plt.subplot(122)
plt.plot(basez2b,delta_z_pdzs,'k-',lw=5)
plt.grid()
plt.xlim(-0.2,0.2)
#plt.ylim(0.001,0.1)
plt.xlabel('$\delta_{z}$',size=30)
plt.ylabel('P(z)',size=20,labelpad=+1)
pausa = raw_input('press a bottom to continue')
"""
# New variables to handle data easily.
# It scales the normalized PDFs by the ng!
norm_dz_peaks = a1 / float(sum(a1))
norm_dz_pdfs = delta_z_pdzs / float(sum(delta_z_pdzs))
if plots:
plt.figure(11,
figsize=(8.5, 10.),
dpi=80,
facecolor='w',
edgecolor='k')
plt.clf()
#plt.subplot(212)
plt.plot(basez2b, norm_dz_peaks, 'b-', lw=8, alpha=0.6)
plt.plot(basez2b, norm_dz_pdfs, 'r-', lw=5, alpha=0.9)
plt.grid()
plt.xlim(-0.2, 0.2)
plt.ylabel('P(z)', size=20, labelpad=+1)
plt.legend(['peaks', 'pdfs'], loc='upper left', fontsize=20)
plt.xlabel('$\delta_{z}$', size=30)
plot_filename = hdf5file[:-4] + 'deltaz.mmax%.2fAB.png' % (m_max)
plt.savefig(plot_filename, dpi=80)
# Saving data into a file.
output_filename = hdf5file[:-4] + 'deltaz.mmax%.2fAB.mat' % (m_max)
U.put_data(output_filename, (basez2b, norm_dz_peaks, norm_dz_pdfs),
'z dz_peak dz_PDFs')
return basez2b, norm_dz_peaks, norm_dz_pdfs
def function(z, m, nt):
"""HDFN prior for the main six types of Benitez 2000
Returns an array pi[z[:],:6]
The input magnitude is F814W AB
"""
if nt != 6:
print("Wrong number of template spectra!")
sys.exit()
global zt_at_a
global zt_at_1p5
global zt_at_2
nz = len(z)
momin_hdf = 20.
if m <= 20.:
xm = numpy.arange(12., 18.0)
ft = numpy.array((0.55, 0.21, 0.21, .01, .01, .01))
zm0 = numpy.array([0.021, 0.034, 0.056, 0.0845, 0.1155, 0.127]) * (
old_div(2., 3.))
if len(ft) != nt:
print("Wrong number of templates!")
sys.exit()
nz = len(z)
m = numpy.array([m]) # match_resol works with arrays
m = numpy.clip(m, xm[0], xm[-1])
zm = match_resol(xm, zm0, m)
try:
zt_2.shape
except NameError:
t2 = [2.] * nt
zt_2 = numpy.power.outer(z, t2)
try:
zt_1p5.shape
except NameError:
t1p5 = [1.5] * nt
zt_1p5 = numpy.power.outer(z, t1p5)
zm_3 = numpy.power.outer(zm, 3)
zm_1p5 = numpy.power.outer(zm, 1.5)
p_i = 3. / 2. / zm_3 * zt_2[:, :] * numpy.exp(-numpy.clip(
old_div(zt_1p5[:, :], zm_1p5), 0., 700.))
norm = numpy.add.reduce(p_i[:nz, :], 0)
#Get rid of very low probability levels
p_i[:nz, :] = numpy.where(
numpy.less(
old_div(p_i[:nz, :], norm[:]), old_div(1e-5, float(nz))), 0.,
old_div(p_i[:nz, :], norm[:]))
norm = numpy.add.reduce(p_i[:nz, :], 0)
return p_i[:nz, :] / norm[:] * ft[:]
else:
m = numpy.minimum(numpy.maximum(20., m), 32)
a = numpy.array((2.465, 1.806, 1.806, 0.906, 0.906, 0.906))
zo = numpy.array((0.431, 0.390, 0.390, 0.0626, 0.0626, 0.0626))
km = numpy.array((0.0913, 0.0636, 0.0636, 0.123, 0.123, 0.123))
fo_t = numpy.array((0.35, 0.25, 0.25))
k_t = numpy.array((0.450, 0.147, 0.147))
dm = m - momin_hdf
zmt = numpy.clip(zo + km * dm, 0.01, 15.)
zmt_at_a = zmt**(a)
#We define z**a as global to keep it
#between function calls. That way it is
# estimated only once
try:
zt_at_a.shape
except NameError:
zt_at_a = numpy.power.outer(z, a)
#Morphological fractions
f_t = numpy.zeros((len(a), ), Float)
f_t[:3] = fo_t * numpy.exp(-k_t * dm)
f_t[3:] = old_div((1. - numpy.add.reduce(f_t[:3])), 3.)
#Formula:
#zm=zo+km*(m_m_min)
#p(z|T,m)=(z**a)*numpy.exp(-(z/zm)**a)
p_i = zt_at_a[:nz, :6] * numpy.exp(-numpy.clip(
old_div(zt_at_a[:nz, :6], zmt_at_a[:6]), 0., 700.))
#This eliminates the very low level tails of the priors
norm = numpy.add.reduce(p_i[:nz, :6], 0)
p_i[:nz, :6] = numpy.where(
less(
old_div(p_i[:nz, :6], norm[:6]), old_div(1e-2, float(nz))), 0.,
old_div(p_i[:nz, :6], norm[:6]))
norm = numpy.add.reduce(p_i[:nz, :6], 0)
p_i[:nz, :6] = p_i[:nz, :6] / norm[:6] * f_t[:6]
return p_i
complet_file_mr = root_to_complet + 'AEGIS.master.spz.%s.'%(aperture) complet_file_mr += 'cali.completeness.mr.cat' number_counts = root_to_counts + 'AEGIS.master.z.counts.mr.cat' # Reading the number counts. base_mr,mr = U.get_data(number_counts,(0,1)) # Reading the completeness fraction base_mo,cm_o1,cm_o2,cm_o3,cm_o4 = U.get_data(complet_file_mr,(0,1,2,3,4)) # Intervals to be used. mmin = 17. mmax = 28. dm = 0.5 new_base = np.arange(mmin,mmax+dm,dm) new_numb_counts = U.match_resol(base_mr,mr,new_base) new_complet_o1 = U.match_resol(base_mo,cm_o1,new_base) new_complet_o1 = np.where(new_complet_o1<0.,0.,new_complet_o1) new_complet_o2 = U.match_resol(base_mo,cm_o2,new_base) new_complet_o2 = np.where(new_complet_o2<0.,0.,new_complet_o2) new_complet_o3 = U.match_resol(base_mo,cm_o3,new_base) new_complet_o3 = np.where(new_complet_o3<0.,0.,new_complet_o3) new_complet_o4 = U.match_resol(base_mo,cm_o4,new_base) new_complet_o4 = np.where(new_complet_o4<0.,0.,new_complet_o4) # Final number counts. final_num_counts_o1 = new_numb_counts * new_complet_o1 final_num_counts_o2 = new_numb_counts * new_complet_o2 final_num_counts_o3 = new_numb_counts * new_complet_o3 final_num_counts_o4 = new_numb_counts * new_complet_o4
