def plot_fit(self, size=None, tol=0.1, axis_on=True):
n, d = self.D.shape
if size:
nrows, ncols = size
else:
sq = np.ceil(np.sqrt(n))
nrows = int(sq)
ncols = int(sq)
ymin = np.nanmin(self.D)
ymax = np.nanmax(self.D)
print 'ymin: {0}, ymax: {1}'.format(ymin, ymax)
numplots = np.min([n, nrows * ncols])
plt.figure()
for n in xrange(numplots):
plt.subplot(nrows, ncols, n + 1)
plt.ylim((ymin - tol, ymax + tol))
plt.plot(self.L[n, :] + self.S[n, :], 'r')
plt.plot(self.L[n, :], 'b')
if not axis_on:
plt.axis('off')
def matrixMontage(spcomps,*args, **kwargs):
numcomps, width, height=spcomps.shape
rowcols=int(np.ceil(np.sqrt(numcomps)));
for k,comp in enumerate(spcomps):
plt.subplot(rowcols,rowcols,k+1)
plt.imshow(comp,*args, **kwargs)
plt.axis('off')
def plot_weightings():
"""Plots all weighting functions defined in :module: splweighting."""
from scipy.signal import freqz
from pylab import plt, np
sample_rate = 48000
num_samples = 2*4096
fig, ax = plt.subplots()
for name, weight_design in sorted(
_weighting_coeff_design_funsd.items()):
b, a = weight_design(sample_rate)
w, H = freqz(b, a, worN=num_samples)
freq = w*sample_rate / (2*np.pi)
ax.semilogx(freq, 20*np.log10(np.abs(H)+1e-20),
label='{}-Weighting'.format(name))
plt.legend(loc='lower right')
plt.xlabel('Frequency / Hz')
plt.ylabel('Damping / dB')
plt.grid(True)
plt.axis([10, 20000, -80, 5])
return fig, ax
def plot_fit(self, size=None, tol=0.1, axis_on=True):
n, d = self.D.shape
if size:
nrows, ncols = size
else:
sq = np.ceil(np.sqrt(n))
nrows = int(sq)
ncols = int(sq)
ymin = np.nanmin(self.D)
ymax = np.nanmax(self.D)
print('ymin: {0}, ymax: {1}'.format(ymin, ymax))
numplots = np.min([n, nrows * ncols])
plt.figure()
for n in range(numplots):
plt.subplot(nrows, ncols, n + 1)
plt.ylim((ymin - tol, ymax + tol))
plt.plot(self.L[n, :] + self.S[n, :], 'r')
plt.plot(self.L[n, :], 'b')
if not axis_on:
plt.axis('off')
def plot_stat(rows, cache):
"Use matplotlib to plot DAS statistics"
if not PLOT_ALLOWED:
raise Exception('Matplotlib is not available on the system')
if cache in ['cache', 'merge']: # cachein, cacheout, mergein, mergeout
name_in = '%sin' % cache
name_out = '%sout' % cache
else: # webip, webq, cliip, cliq
name_in = '%sip' % cache
name_out = '%sq' % cache
def format_date(date):
"Format given date"
val = str(date)
return '%s-%s-%s' % (val[:4], val[4:6], val[6:8])
date_range = [r['date'] for r in rows]
formated_dates = [format_date(str(r['date'])) for r in rows]
req_in = [r[name_in] for r in rows]
req_out = [r[name_out] for r in rows]
plt.plot(date_range, req_in , 'ro-',\
date_range, req_out, 'gv-',)
plt.grid(True)
plt.axis([min(date_range), max(date_range), \
0, max([max(req_in), max(req_out)])])
plt.xticks(date_range, tuple(formated_dates), rotation=17)
# plt.xlabel('dates [%s, %s]' % (date_range[0], date_range[-1]))
plt.ylabel('DAS %s behavior' % cache)
plt.savefig('das_%s.pdf' % cache, format='pdf', transparent=True)
plt.close()
def plot_scenarios(scenarios):
nrows = len(scenarios)
fig = plt.figure(figsize=(24, nrows))
n_plot = nrows
plt.axis('off')
# plot fake samples
for iplot in range(nrows):
for jplot in range(24):
ax = plt.subplot(n_plot, 24, iplot * 24 + jplot + 1)
if iplot == 0:
ax.annotate(f'{jplot:02d}'
':00',
xy=(0.5, 1),
xytext=(0, 5),
xycoords='axes fraction',
textcoords='offset points',
size='large',
ha='center',
va='baseline')
im = plt.imshow(scenarios[iplot, jplot - 1, :, :],
cmap=plt.cm.gist_earth_r,
norm=LogNorm(vmin=0.01, vmax=50))
plt.axis('off')
fig.subplots_adjust(right=0.93)
cbar_ax = fig.add_axes([0.93, 0.15, 0.007, 0.7])
cbar = fig.colorbar(im, cax=cbar_ax)
cbar.set_label('fraction of daily precipitation', fontsize=16)
cbar.ax.tick_params(labelsize=16)
return fig
def plot_stat(rows, cache):
"Use matplotlib to plot DAS statistics"
if not PLOT_ALLOWED:
raise Exception('Matplotlib is not available on the system')
if cache in ['cache', 'merge']: # cachein, cacheout, mergein, mergeout
name_in = '%sin' % cache
name_out = '%sout' % cache
else: # webip, webq, cliip, cliq
name_in = '%sip' % cache
name_out = '%sq' % cache
def format_date(date):
"Format given date"
val = str(date)
return '%s-%s-%s' % (val[:4], val[4:6], val[6:8])
date_range = [r['date'] for r in rows]
formated_dates = [format_date(str(r['date'])) for r in rows]
req_in = [r[name_in] for r in rows]
req_out = [r[name_out] for r in rows]
plt.plot(date_range, req_in , 'ro-',
date_range, req_out, 'gv-',
)
plt.grid(True)
plt.axis([min(date_range), max(date_range), \
0, max([max(req_in), max(req_out)])])
plt.xticks(date_range, tuple(formated_dates), rotation=17)
# plt.xlabel('dates [%s, %s]' % (date_range[0], date_range[-1]))
plt.ylabel('DAS %s behavior' % cache)
plt.savefig('das_%s.pdf' % cache, format='pdf', transparent=True)
plt.close()
def plot_weightings():
"""Plots all weighting functions defined in :module: splweighting."""
from scipy.signal import freqz
from pylab import plt, np
sample_rate = 48000
num_samples = 2 * 4096
fig, ax = plt.subplots()
for name, weight_design in sorted(_weighting_coeff_design_funsd.items()):
b, a = weight_design(sample_rate)
w, H = freqz(b, a, worN=num_samples)
freq = w * sample_rate / (2 * np.pi)
ax.semilogx(freq,
20 * np.log10(np.abs(H) + 1e-20),
label='{}-Weighting'.format(name))
plt.legend(loc='lower right')
plt.xlabel('Frequency / Hz')
plt.ylabel('Damping / dB')
plt.grid(True)
plt.axis([10, 20000, -80, 5])
return fig, ax
def create_image(csv_path):
csv_data, _, _ = read_csv_data(csv_path)
plt.figure()
plt.plot(csv_data)
plt.axis('off')
plt.savefig('wind_data.png', bbox_inches='tight', dpi=500)
def plot_roc_curve(fpr, tpr, label=None):
"""
Plots Rceiver Operating Characteristic (ROC) curve from false_positive_rate(fpr), true_positive_rate(tpr)
Requires imports:
from sklearn.metrics import roc_curve
Returns:
Nothing
"""
from pylab import mpl, plt
import matplotlib.pyplot as plt
import numpy as np
plt.style.use('seaborn')
mpl.rcParams['font.family'] = 'arial'
np.random.seed(1000)
np.set_printoptions(suppress=True, precision=4)
plt.plot(fpr, tpr, linewidth=2, label=label)
plt.plot([0, 1], [0, 1], 'k--')
plt.axis([0, 1, 0, 1])
plt.xlabel('False Positive Rate')
plt.ylabel('True Negatove Rate')
plot_roc_curve(fpr, tpr)
def example_filterbank():
from pylab import plt
import numpy as np
x = _create_impulse(2000)
gfb = GammatoneFilterbank(density=1)
analyse = gfb.analyze(x)
imax, slopes = gfb.estimate_max_indices_and_slopes()
fig, axs = plt.subplots(len(gfb.centerfrequencies), 1)
for (band, state), imx, ax in zip(analyse, imax, axs):
ax.plot(np.real(band))
ax.plot(np.imag(band))
ax.plot(np.abs(band))
ax.plot(imx, 0, 'o')
ax.set_yticklabels([])
[ax.set_xticklabels([]) for ax in axs[:-1]]
axs[0].set_title('Impulse responses of gammatone bands')
fig, ax = plt.subplots()
def plotfun(x, y):
ax.semilogx(x, 20*np.log10(np.abs(y)**2))
gfb.freqz(nfft=2*4096, plotfun=plotfun)
plt.grid(True)
plt.title('Absolute spectra of gammatone bands.')
plt.xlabel('Normalized Frequency (log)')
plt.ylabel('Attenuation /dB(FS)')
plt.axis('Tight')
plt.ylim([-90, 1])
plt.show()
return gfb
def example_filterbank():
from pylab import plt
import numpy as np
x = _create_impulse(2000)
gfb = GammatoneFilterbank(density=1)
analyse = gfb.analyze(x)
imax, slopes = gfb.estimate_max_indices_and_slopes()
fig, axs = plt.subplots(len(gfb.centerfrequencies), 1)
for (band, state), imx, ax in zip(analyse, imax, axs):
ax.plot(np.real(band))
ax.plot(np.imag(band))
ax.plot(np.abs(band))
ax.plot(imx, 0, 'o')
ax.set_yticklabels([])
[ax.set_xticklabels([]) for ax in axs[:-1]]
axs[0].set_title('Impulse responses of gammatone bands')
fig, ax = plt.subplots()
def plotfun(x, y):
ax.semilogx(x, 20 * np.log10(np.abs(y)**2))
gfb.freqz(nfft=2 * 4096, plotfun=plotfun)
plt.grid(True)
plt.title('Absolute spectra of gammatone bands.')
plt.xlabel('Normalized Frequency (log)')
plt.ylabel('Attenuation /dB(FS)')
plt.axis('Tight')
plt.ylim([-90, 1])
plt.show()
return gfb
def matrixMontage(spcomps, *args, **kwargs):
numcomps, width, height = spcomps.shape
rowcols = int(np.ceil(np.sqrt(numcomps)))
for k, comp in enumerate(spcomps):
plt.subplot(rowcols, rowcols, k + 1)
plt.imshow(comp, *args, **kwargs)
plt.axis('off')
def imshow(self, name):
'''
显示灰度图
'''
img = self.buffer2img(name)
plt.imshow(img, cmap='gray')
plt.axis('off')
plt.show()
def imshow(self, name):
'''
显示灰度图
'''
img = self.buffer2img(name)
plt.imshow(img, cmap='gray')
plt.axis('off')
plt.show()
def save_images(images, path):
fig = plt.figure()
for i, image in enumerate(images):
fig.add_subplot(1, len(images), i + 1)
plt.imshow(image)
plt.axis('off')
plt.savefig(path, bbox_inches='tight')
plt.close()
def draw_partitioned_graph(G,
partition_obj,
layout=None,
labels=None,
layout_type='spring',
node_size=70,
node_alpha=0.7,
cmap=plt.get_cmap('jet'),
node_text_size=12,
edge_color='blue',
edge_alpha=0.5,
edge_tickness=1,
edge_text_pos=0.3,
text_font='sans-serif'):
# if a premade layout haven't been passed, create a new one
if not layout:
if graph_type == 'spring':
layout = nx.spring_layout(G)
elif graph_type == 'spectral':
layout = nx.spectral_layout(G)
elif graph_type == 'random':
layout = nx.random_layout(G)
else:
layout = nx.shell_layout(G)
# prepare the partition list noeds and colors
list_nodes, node_color = partition_to_draw(partition_obj)
# draw graph
nx.draw_networkx_nodes(G,
layout,
list_nodes,
node_size=node_size,
alpha=node_alpha,
node_color=node_color,
cmap=cmap)
nx.draw_networkx_edges(G,
layout,
width=edge_tickness,
alpha=edge_alpha,
edge_color=edge_color)
#nx.draw_networkx_labels(G, layout,font_size=node_text_size,
# font_family=text_font)
if labels is None:
labels = range(len(G))
edge_labels = dict(zip(G, labels))
#nx.draw_networkx_edge_labels(G, layout, edge_labels=edge_labels,
# label_pos=edge_text_pos)
# show graph
plt.axis('off')
plt.xlim(0, 1)
plt.ylim(0, 1)
def plot_mat(self, mat, fn):
plt.matshow(asarray(mat.todense()))
plt.axis('equal')
sh = mat.shape
plt.gca().set_yticks(range(0, sh[0]))
plt.gca().set_xticks(range(0, sh[1]))
plt.grid('on')
plt.colorbar()
plt.savefig(join(self.outs_dir, fn))
plt.close()
def plot_mat(self, mat, fn):
plt.matshow(asarray(mat.todense()))
plt.axis('equal')
sh = mat.shape
plt.gca().set_yticks(range(0,sh[0]))
plt.gca().set_xticks(range(0,sh[1]))
plt.grid('on')
plt.colorbar()
plt.savefig(join(self.outs_dir, fn))
plt.close()
def convert_all_to_png(vis_path, out_dir="maps_png", size=None):
units = {
'gas_density': 'Gas Density [g/cm$^3$]',
'Tm': 'Temperature [K]',
'Tew': 'Temperature [K]',
'S': 'Entropy []',
'dm': 'DM Density [g/cm$^3$]',
'v': 'Velocity [km/s]'
}
log_list = ['gas_density']
for vis_file in os.listdir(vis_path):
if ".dat" not in vis_file:
continue
print "converting %s" % vis_file
map_type = re.search('sigma_(.*)_[xyz]', vis_file).group(1)
(image, pixel_size,
axis_values) = read_visualization_data(vis_path + "/" + vis_file,
size)
print "image width in Mpc/h: ", axis_values[-1] * 2.0
x, y = np.meshgrid(axis_values, axis_values)
cmap_max = image.max()
cmap_min = image.min()
''' plotting '''
plt.figure(figsize=(5, 4))
if map_type in log_list:
plt.pcolor(x, y, image, norm=LogNorm(vmax=cmap_max, vmin=cmap_min))
else:
plt.pcolor(x, y, image, vmax=cmap_max, vmin=cmap_min)
cbar = plt.colorbar()
if map_type in units.keys():
cbar.ax.set_ylabel(units[map_type])
plt.axis(
[axis_values[0], axis_values[-1], axis_values[0], axis_values[-1]])
del image
plt.xlabel(r"$Mpc/h$", fontsize=18)
plt.ylabel(r"$Mpc/h$", fontsize=18)
out_file = vis_file.replace("dat", "png")
plt.savefig(out_dir + "/" + out_file, dpi=150)
plt.close()
plt.clf()
def draw_mock_graph():
'''draw the toe energy per meter graph.
'''
plt.plot([1, 2, 3, 4, 5, 6, 7, 8, 9, 10],
[1, 2, 4, 5, 6, 7, 10, 15, 15, 15], 'ro')
plt.axis([0, 10, 0, 20])
canvas = pylab.get_current_fig_manager().canvas
canvas.draw()
pil_image = Image.frombytes("RGB", canvas.get_width_height(),
canvas.tostring_rgb())
pylab.close()
return pil_image
def convert_all_to_png(vis_path, out_dir = "maps_png", size = None) :
units = { 'gas_density' : 'Gas Density [g/cm$^3$]',
'Tm' : 'Temperature [K]',
'Tew' : 'Temperature [K]',
'S' : 'Entropy []',
'dm' : 'DM Density [g/cm$^3$]',
'v' : 'Velocity [km/s]' }
log_list = ['gas_density']
for vis_file in os.listdir(vis_path) :
if ".dat" not in vis_file :
continue
print "converting %s" % vis_file
map_type = re.search('sigma_(.*)_[xyz]', vis_file).group(1)
(image, pixel_size, axis_values) = read_visualization_data(vis_path+"/"+vis_file, size)
print "image width in Mpc/h: ", axis_values[-1]*2.0
x, y = np.meshgrid( axis_values, axis_values )
cmap_max = image.max()
cmap_min = image.min()
''' plotting '''
plt.figure(figsize=(5,4))
if map_type in log_list:
plt.pcolor(x,y,image, norm=LogNorm(vmax=cmap_max, vmin=cmap_min))
else :
plt.pcolor(x,y,image, vmax=cmap_max, vmin=cmap_min)
cbar = plt.colorbar()
if map_type in units.keys() :
cbar.ax.set_ylabel(units[map_type])
plt.axis([axis_values[0], axis_values[-1],axis_values[0], axis_values[-1]])
del image
plt.xlabel(r"$Mpc/h$", fontsize=18)
plt.ylabel(r"$Mpc/h$", fontsize=18)
out_file = vis_file.replace("dat", "png")
plt.savefig(out_dir+"/"+out_file, dpi=150 )
plt.close()
plt.clf()
def drawAdoptionNetworkMPL(G, fnum=1, show=False, writeFile=None):
"""Draws the network to matplotlib, coloring the nodes based on adoption.
Looks for the node attribute 'adopted'. If the attribute is True, colors
the node a different color, showing adoption visually. This function assumes
that the node attributes have been pre-populated.
:param networkx.Graph G: Any NetworkX Graph object.
:param int fnum: The matplotlib figure number. Defaults to 1.
:param bool show:
:param str writeFile: A filename/path to save the figure image. If not
specified, no output file is written.
"""
Gclean = G.subgraph([n for n in G.nodes() if n not in nx.isolates(G)])
plt.figure(num=fnum, figsize=(6,6))
# clear figure
plt.clf()
# Blue ('b') node color for adopters, red ('r') for non-adopters.
nodecolors = ['b' if Gclean.node[n]['adopted'] else 'r' \
for n in Gclean.nodes()]
layout = nx.spring_layout(Gclean)
nx.draw_networkx_nodes(Gclean, layout, node_size=80,
nodelist=Gclean.nodes(),
node_color=nodecolors)
nx.draw_networkx_edges(Gclean, layout, alpha=0.5) # width=4
# TODO: Draw labels of Ii values. Maybe vary size of node.
# TODO: Color edges blue based on influences from neighbors
influenceEdges = []
for a in Gclean.nodes():
for n in Gclean.node[a]['influence']:
influenceEdges.append((a,n))
if len(influenceEdges)>0:
nx.draw_networkx_edges(Gclean, layout, alpha=0.5, width=5,
edgelist=influenceEdges,
edge_color=['b']*len(influenceEdges))
#some extra space around figure
plt.xlim(-0.05,1.05)
plt.ylim(-0.05,1.05)
plt.axis('off')
if writeFile != None:
plt.savefig(writeFile)
if show:
plt.show()
def plot_fault_framework(fault_framework):
fm = fault_framework
plt.plot(fm.Y_PC, fm.DEP, '-o')
plt.axis('equal')
plt.axhline(0, color='black')
plt.gca().set_yticks(fm.DEP)
plt.gca().set_xticks(fm.Y_PC)
plt.grid('on')
plt.xlabel('From trench to continent(km)')
plt.ylabel('depth (km)')
for xi, yi, dip in zip(fm.Y_PC, fm.DEP, fm.DIP_D):
plt.text(xi, yi, 'dip = %.1f'%dip)
plt.gca().invert_yaxis()
def plot_fault_framework(fault_framework):
fm = fault_framework
plt.plot(fm.Y_PC, fm.DEP, '-o')
plt.axis('equal')
plt.axhline(0, color='black')
plt.gca().set_yticks(fm.DEP)
plt.gca().set_xticks(fm.Y_PC)
plt.grid('on')
plt.xlabel('From trench to continent(km)')
plt.ylabel('depth (km)')
for xi, yi, dip in zip(fm.Y_PC, fm.DEP, fm.DIP_D):
plt.text(xi, yi, 'dip = %.1f' % dip)
plt.gca().invert_yaxis()
def plot_overview(self,suffix=''):
x=self.x; y=self.y; r=self.radius; cx,cy=self.center.real,self.center.imag
ax=plt.axes()
plt.scatter(x,y, marker='o', c='b', s=40)
plt.axhline(y=0,color='grey', zorder=-1)
plt.axvline(x=0,color='grey', zorder=-2)
t=linspace(0,2*pi,201)
circx=r*cos(t) + cx
circy=r*sin(t) + cy
plt.plot(circx,circy,'g-')
plt.plot([cx],[cy],'gx',ms=12)
if self.ZorY == 'Z':
philist,flist=[self.phi_a,self.phi_p,self.phi_n],[self.fa,self.fp,self.fn]
elif self.ZorY == 'Y':
philist,flist=[self.phi_m,self.phi_s,self.phi_r],[self.fm,self.fs,self.fr]
for p,f in zip(philist,flist):
if f is not None:
xpos=cx+r*cos(p); ypos=cy+r*sin(p); xos=0.2*(xpos-cx); yos=0.2*(ypos-cy)
plt.plot([0,xpos],[0,ypos],'co-')
ax.annotate('{:.3f} Hz'.format(f), xy=(xpos,ypos), xycoords='data',
xytext=(xpos+xos,ypos+yos), textcoords='data', #textcoords='offset points',
arrowprops=dict(arrowstyle="->", shrinkA=0, shrinkB=10)
)
#plt.xlim(0,0.16)
#plt.ylim(-0.1,0.1)
plt.axis('equal')
if self.ZorY == 'Z':
plt.xlabel(r'resistance $R$ in Ohm'); plt.ylabel(r'reactance $X$ in Ohm')
if self.ZorY == 'Y':
plt.xlabel(r'conductance $G$ in Siemens'); plt.ylabel(r'susceptance $B$ in Siemens')
plt.title("fitting the admittance circle with Powell's method")
tx1='best fit (fmin_powell):\n'
tx1+='center at G+iB = {:.5f} + i*{:.8f}\n'.format(cx,cy)
tx1+='radius = {:.5f}; '.format(r)
tx1+='residue: {:.2e}'.format(self.resid)
txt1=plt.text(-r,cy-1.1*r,tx1,fontsize=8,ha='left',va='top')
txt1.set_bbox(dict(facecolor='gray', alpha=0.25))
idxlist=self.to_be_annotated('triple')
ofs=self.annotation_offsets(idxlist,factor=0.1,xshift=0.15)
for i,j in enumerate(idxlist):
xpos,ypos = x[j],y[j]; xos,yos = ofs[i].real,ofs[i].imag
ax.annotate('{:.1f} Hz'.format(self.f[j]), xy=(xpos,ypos), xycoords='data',
xytext=(xpos+xos,ypos+yos), textcoords='data', #textcoords='offset points',
arrowprops=dict(arrowstyle="->", shrinkA=0, shrinkB=10)
)
if self.show: plt.show()
else: plt.savefig(join(self.sdc.plotpath,'c{}_fitted_{}_circle'.format(self.sdc.case,self.ZorY)+suffix+'.png'), dpi=240)
plt.close()
def test_dep(self):
xf = arange(0, 425)
deps = self.fm.get_dep(xf)
plt.plot(xf, deps)
plt.gca().set_yticks(self.fm.DEP)
plt.gca().set_xticks(self.fm.Y_PC)
plt.grid('on')
plt.title('Ground x versus depth')
plt.xlabel('Ground X (km)')
plt.ylabel('depth (km)')
plt.axis('equal')
plt.gca().invert_yaxis()
plt.savefig(join(self.outs_dir, '~Y_PC_vs_deps.png'))
plt.close()
def test_dep(self):
xf = arange(0, 425)
deps = self.fm.get_dep(xf)
plt.plot(xf,deps)
plt.gca().set_yticks(self.fm.DEP)
plt.gca().set_xticks(self.fm.Y_PC)
plt.grid('on')
plt.title('Ground x versus depth')
plt.xlabel('Ground X (km)')
plt.ylabel('depth (km)')
plt.axis('equal')
plt.gca().invert_yaxis()
plt.savefig(join(self.outs_dir, '~Y_PC_vs_deps.png'))
plt.close()
def convolve(arrays, melBank, genere, filter_idx):
x = []
melBank_time = np.fft.ifft(melBank) #need to transform melBank to time domain
for eachClip in arrays:
result = np.convolve(eachClip, melBank_time)
x.append(result)
plotBeforeAfterFilter(eachClip, melBank, melBank_time, result, genere, filter_idx)
m = np.asmatrix(np.array(x))
fig, ax = plt.subplots()
ax.matshow(m.real) #each element has imaginary part. So just plot real part
plt.axis('equal')
plt.axis('tight')
plt.title(genere)
plt.tight_layout()
# filename = "./figures/convolution/Convolution_"+"Filter"+str(filter_idx)+genere+".png"
# plt.savefig(filename)
plt.show()
def draw_partitioned_graph(G, partition_obj, layout=None, labels=None,layout_type='spring',
node_size=70, node_alpha=0.7, cmap=plt.get_cmap('jet'),
node_text_size=12,
edge_color='blue', edge_alpha=0.5, edge_tickness=1,
edge_text_pos=0.3,
text_font='sans-serif'):
# if a premade layout haven't been passed, create a new one
if not layout:
if graph_type == 'spring':
layout=nx.spring_layout(G)
elif graph_type == 'spectral':
layout=nx.spectral_layout(G)
elif graph_type == 'random':
layout=nx.random_layout(G)
else:
layout=nx.shell_layout(G)
# prepare the partition list noeds and colors
list_nodes, node_color = partition_to_draw(partition_obj)
# draw graph
nx.draw_networkx_nodes(G,layout,list_nodes,node_size=node_size,
alpha=node_alpha, node_color=node_color, cmap = cmap)
nx.draw_networkx_edges(G,layout,width=edge_tickness,
alpha=edge_alpha,edge_color=edge_color)
#nx.draw_networkx_labels(G, layout,font_size=node_text_size,
# font_family=text_font)
if labels is None:
labels = range(len(G))
edge_labels = dict(zip(G, labels))
#nx.draw_networkx_edge_labels(G, layout, edge_labels=edge_labels,
# label_pos=edge_text_pos)
# show graph
plt.axis('off')
plt.xlim(0,1)
plt.ylim(0,1)
def freqz(sosmat, nsamples=44100, sample_rate=44100, plot=True):
"""Plots Frequency response of sosmat."""
from pylab import np, plt, fft, fftfreq
x = np.zeros(nsamples)
x[int(nsamples/2)] = 0.999
y, states = sosfilter_double_c(x, sosmat)
Y = fft(y)
f = fftfreq(len(x), 1.0/sample_rate)
if plot:
plt.grid(True)
plt.axis([0, sample_rate / 2, -100, 5])
L = 20*np.log10(np.abs(Y[:int(len(x)/2)]) + 1e-17)
plt.semilogx(f[:int(len(x)/2)], L, lw=0.5)
plt.hold(True)
plt.title(u'freqz sos filter')
plt.xlabel('Frequency / Hz')
plt.ylabel(u'Damping /dB(FS)')
plt.xlim((10, sample_rate/2))
plt.hold(False)
return x, y, f, Y
def freqz(sosmat, nsamples=44100, sample_rate=44100, plot=True):
"""Plots Frequency response of sosmat."""
from pylab import np, plt, fft, fftfreq
x = np.zeros(nsamples)
x[nsamples/2] = 0.999
y, states = sosfilter_double_c(x, sosmat)
Y = fft(y)
f = fftfreq(len(x), 1.0/sample_rate)
if plot:
plt.grid(True)
plt.axis([0, sample_rate / 2, -100, 5])
L = 20*np.log10(np.abs(Y[:len(x)/2]) + 1e-17)
plt.semilogx(f[:len(x)/2], L, lw=0.5)
plt.hold(True)
plt.title('freqz sos filter')
plt.xlabel('Frequency / Hz')
plt.ylabel('Damping /dB(FS)')
plt.xlim((10, sample_rate/2))
plt.hold(False)
return x, y, f, Y
def generate_word_cloud(text, no, name=None, show=True):
''' Generates a word cloud bitmap given a
text document (string).
It uses the Term Frequency (TF) and
Inverse Document Frequency (IDF)
vectorization approach to derive the
importance of a word -- represented
by the size of the word in the word cloud.
Parameters
==========
text: str
text as the basis
no: int
number of words to be included
name: str
path to save the image
show: bool
whether to show the generated image or not
'''
tokens = tokenize(text)
vec = TfidfVectorizer(min_df=2,
analyzer='word',
ngram_range=(1, 2),
stop_words='english')
vec.fit_transform(tokens)
wc = pd.DataFrame({'words': vec.get_feature_names(), 'tfidf': vec.idf_})
words = ' '.join(wc.sort_values('tfidf', ascending=True)['words'].head(no))
wordcloud = WordCloud(max_font_size=110,
background_color='white',
width=1024,
height=768,
margin=10,
max_words=150).generate(words)
if show:
plt.figure(figsize=(10, 10))
plt.imshow(wordcloud, interpolation='bilinear')
plt.axis('off')
plt.show()
if name is not None:
wordcloud.to_file(name)
def load_mnist(path, filename='mnist.pkl.gz', plot=True):
"""
Loads the MNIST dataset. Downloads the data if it doesn't already exist.
This code is adapted from the deeplearning.net tutorial on classifying
MNIST data with Logistic Regression: http://deeplearning.net/tutorial/logreg.html#logreg
:param path: (str) Path to where data lives or should be downloaded too
:param filename: (str) name of mnist file to download or load
:return: train_set, valid_set, test_set
"""
dataset = '{}/{}'.format(path, filename)
data_dir, data_file = os.path.split(dataset)
if data_dir == "" and not os.path.isfile(dataset):
new_path = os.path.join(os.path.split(__file__)[0], "..", "data", dataset)
if os.path.isfile(new_path) or data_file == 'mnist.pkl.gz':
dataset = new_path
if (not os.path.isfile(dataset)) and data_file == 'mnist.pkl.gz':
import urllib
origin = ('http://www.iro.umontreal.ca/~lisa/deep/data/mnist/mnist.pkl.gz')
print 'Downloading data from {}'.format(origin)
urllib.urlretrieve(origin, dataset)
print '... loading data'
f = gzip.open(dataset, 'rb')
train_set, valid_set, test_set = cPickle.load(f)
f.close()
X_train = train_set[0]
y_train = train_set[1]
if plot:
for k in range(25):
plt.subplot(5,5,k)
plt.imshow(np.reshape(X_train[k,:], (28,28)))
plt.axis('off')
plt.title(y_train[k])
return train_set, valid_set, test_set
def __call__(self,axis_on_or_off='off',use_lims=True,use_lims_ext=False):
if 0:
axis_on_or_off = axis_on_or_off.lower()
if axis_on_or_off not in ['off','on']:
raise ValueError(axis_on_or_off)
if use_lims_ext:
use_lims=False
if use_lims_ext and use_lims:
msg="use_lims={0} AND ".format(use_lims)
msg+="use_lims_ext={0} ".format(use_lims_ext)
msg+="but at most one of these can be True."
raise ValueError(msg)
Nx=self.Nx
Ny=self.Ny
# plt.axis(axis_on_or_off)
plt.axis('scaled')
# if use_lims:
# plt.xlim([0,Nx])
# plt.ylim([0,Ny])
# if use_lims_ext:
# plt.xlim([0,Nx+1])
# plt.ylim([0,Ny+1])
of.plt.axis_ij()
return
axis_on_or_off = axis_on_or_off.lower()
if axis_on_or_off not in ['off','on']:
raise ValueError(axis_on_or_off)
if use_lims_ext:
use_lims=False
if use_lims_ext and use_lims:
msg="use_lims={0} AND ".format(use_lims)
msg+="use_lims_ext={0} ".format(use_lims_ext)
msg+="but at most one of these can be True."
raise ValueError(msg)
Nx=self.Nx
Ny=self.Ny
plt.axis(axis_on_or_off)
plt.axis('scaled')
if use_lims:
plt.xlim([0,Nx])
plt.ylim([0,Ny])
if use_lims_ext:
plt.xlim([0,Nx+1])
plt.ylim([0,Ny+1])
of.plt.axis_ij()
def show_chan_mpl(code,
start_date,
end_date,
stock_days,
resample,
show_mpl=True,
least_init=3,
chanK_flag=False,
windows=20):
def get_least_khl_num(resample, idx=0, init_num=3):
# init = 3
if init_num - idx > 0:
initw = init_num - idx
else:
initw = 0
return init_num if resample == 'd' else initw if resample == 'w' else init_num-idx-1 if init_num-idx-1 >0 else 0\
if resample == 'm' else 5
stock_code = code # 股票代码
# stock_code = '002176' # 股票代码
# start_date = '2017-09-05'
# start_date = None
# end_date = '2017-10-12 15:00:00' # 最后生成k线日期
# end_date = None
# stock_days = 60 # 看几天/分钟前的k线
# resample = 'd'
# resample = 'w'
x_jizhun = 3 # window 周期 x轴展示的时间距离 5：日，40:30分钟， 48： 5分钟
least_khl_num = get_least_khl_num(resample, init_num=least_init)
# stock_frequency = '5m' # 1d日线， 30m 30分钟， 5m 5分钟，1m 1分钟
stock_frequency = resample # 1d日线， 30m 30分钟， 5m 5分钟，1m 1分钟 w:week
# chanK_flag = chanK # True 看缠论K线， False 看k线
# chanK_flag = True # True 看缠论K线， False 看k线
show_mpl = show_mpl
def con2Cxianduan(stock,
k_data,
chanK,
frsBiType,
biIdx,
end_date,
cur_ji=1,
recursion=False,
dl=None,
chanK_flag=False,
least_init=3):
max_k_num = 4
if cur_ji >= 6 or len(biIdx) == 0 or recursion:
return biIdx
idx = biIdx[len(biIdx) - 1]
k_data_dts = list(k_data.index)
st_data = chanK['enddate'][idx]
if st_data not in k_data_dts:
return biIdx
# 重构次级别线段的点到本级别的chanK中
def refactorXd(biIdx, xdIdxc, chanK, chanKc, cur_ji):
new_biIdx = []
biIdxB = biIdx[len(biIdx) - 1] if len(biIdx) > 0 else 0
for xdIdxcn in xdIdxc:
for chanKidx in range(len(chanK.index))[biIdxB:]:
if judge_day_bao(chanK, chanKidx, chanKc, xdIdxcn, cur_ji):
new_biIdx.append(chanKidx)
break
return new_biIdx
# 判断次级别日期是否被包含
def judge_day_bao(chanK, chanKidx, chanKc, xdIdxcn, cur_ji):
_end_date = chanK['enddate'][chanKidx] + datetime.timedelta(
hours=15) if cur_ji == 1 else chanK['enddate'][chanKidx]
_start_date = chanK.index[chanKidx] if chanKidx == 0\
else chanK['enddate'][chanKidx - 1] + datetime.timedelta(minutes=1)
return _start_date <= chanKc.index[xdIdxcn] <= _end_date
# cur_ji = 1 #当前级别
# 符合k线根数大于4根 1日级别， 2 30分钟， 3 5分钟， 4 一分钟
if not recursion:
resample = 'd' if cur_ji + 1 == 2 else '5m' if cur_ji + 1 == 3 else \
'd' if cur_ji + 1 == 5 else 'w' if cur_ji + 1 == 6 else 'd'
least_khl_num = get_least_khl_num(resample, 1, init_num=least_init)
print "次级:%s st_data:%s k_data_dts:%s least_khl_num:%s" % (
len(k_data_dts) - k_data_dts.index(st_data), str(st_data)[:10],
len(k_data_dts), least_khl_num)
if cur_ji + 1 != 2 and len(k_data_dts) - k_data_dts.index(
st_data) >= least_khl_num + 1:
frequency = '30m' if cur_ji + 1 == 2 else '5m' if cur_ji + 1 == 3 else '1m'
# else:
# frequency = 'd' if cur_ji+1==2 else '5m' if cur_ji+1==3 else \
# 'd' if cur_ji+1==5 else 'w' if cur_ji+1==6 else 'd'
start_lastday = str(chanK.index[biIdx[-1]])[0:10]
print "次级别为:%s cur_ji:%s %s" % (resample, cur_ji, start_lastday)
# print [chanK.index[x] for x in biIdx]
k_data_c, cname = get_quotes_tdx(stock,
start=start_lastday,
end=end_date,
dl=dl,
resample=resample)
print k_data_c.index[0], k_data_c.index[-1]
chanKc = chan.parse2ChanK(
k_data_c, k_data_c.values) if chanK_flag else k_data_c
fenTypesc, fenIdxc = chan.parse2ChanFen(chanKc, recursion=True)
if len(fenTypesc) == 0:
return biIdx
biIdxc, frsBiTypec = chan.parse2ChanBi(
fenTypesc, fenIdxc, chanKc, least_khl_num=least_khl_num - 1)
if len(biIdxc) == 0:
return biIdx
print "biIdxc:", [round(k_data_c.high[x], 2) for x in biIdxc
], [str(k_data_c.index[x])[:10] for x in biIdxc]
xdIdxc, xdTypec = chan.parse2Xianduan(
biIdxc, chanKc, least_windows=1 if least_khl_num > 0 else 0)
biIdxc = con2Cxianduan(stock,
k_data_c,
chanKc,
frsBiTypec,
biIdxc,
end_date,
cur_ji + 1,
recursion=True)
print "xdIdxc:%s xdTypec:%s biIdxc:%s" % (xdIdxc, xdTypec, biIdxc)
if len(xdIdxc) == 0:
return biIdx
# 连接线段位为上级别的bi
lastBiType = frsBiType if len(biIdx) % 2 == 0 else -frsBiType
if len(biIdx) == 0:
return refactorXd(biIdx, xdIdxc, chanK, chanKc, cur_ji)
lastbi = biIdx.pop()
firstbic = xdIdxc.pop(0)
# 同向连接
if lastBiType == xdTypec:
biIdx = biIdx + refactorXd(biIdx, xdIdxc, chanK, chanKc,
cur_ji)
# 逆向连接
else:
# print '开始逆向连接'
_mid = [lastbi] if (lastBiType == -1 and chanK['low'][lastbi] <= chanKc['low'][firstbic])\
or (lastBiType == 1 and chanK['high'][lastbi] >= chanKc['high'][firstbic]) else\
[chanKidx for chanKidx in range(len(chanK.index))[biIdx[len(biIdx) - 1]:]
if judge_day_bao(chanK, chanKidx, chanKc, firstbic, cur_ji)]
biIdx = biIdx + [_mid[0]] + refactorXd(biIdx, xdIdxc, chanK,
chanKc, cur_ji)
# print "次级:",len(biIdx),biIdx,[str(k_data_c.index[x])[:10] for x in biIdx]
return biIdx
def get_quotes_tdx(code,
start=None,
end=None,
dl=120,
resample='d',
show_name=True):
quotes = tdd.get_tdx_append_now_df_api(
code=stock_code, start=start, end=end,
dl=dl).sort_index(ascending=True)
if not resample == 'd' and resample in tdd.resample_dtype:
quotes = tdd.get_tdx_stock_period_to_type(quotes,
period_day=resample)
quotes.index = quotes.index.astype('datetime64')
if show_name:
if 'name' in quotes.columns:
cname = quotes.name[0]
# cname_g =cname
else:
dm = tdd.get_sina_data_df(code)
if 'name' in dm.columns:
cname = dm.name[0]
else:
cname = '-'
else:
cname = '-'
if quotes is not None and len(quotes) > 0:
quotes = quotes.loc[:, [
'open', 'close', 'high', 'low', 'vol', 'amount'
]]
else:
# log.error("quotes is None check:%s"%(code))
raise Exception("Code:%s error, df is None%s" % (code))
return quotes, cname
quotes, cname = get_quotes_tdx(stock_code,
start_date,
end_date,
dl=stock_days,
resample=resample,
show_name=show_mpl)
# quotes.rename(columns={'amount': 'money'}, inplace=True)
# quotes.rename(columns={'vol': 'vol'}, inplace=True)
# print quotes[-2:]
# print quotes[:1]
# 缠论k线
# open close high low volume money
# 2017-05-03 15.69 15.66 15.73 15.53 10557743 165075887
# 2017-05-04 15.66 15.63 15.70 15.52 8343270 130330396
# 2017-05-05 15.56 15.65 15.68 15.41 18384031 285966842
# 2017-05-08 15.62 15.75 15.76 15.54 12598891 197310688
quotes = chan.parse2ChanK(quotes, quotes.values) if chanK_flag else quotes
# print quotes[:1].index
# print quotes[-1:].index
quotes[quotes['vol'] == 0] = np.nan
quotes = quotes.dropna()
Close = quotes['close']
Open = quotes['open']
High = quotes['high']
Low = quotes['low']
T0 = quotes.index.values
# T0 = mdates.date2num(T0)
length = len(Close)
initial_trend = "down"
cur_ji = 1 if stock_frequency == 'd' else \
2 if stock_frequency == '30m' else \
3 if stock_frequency == '5m' else \
4 if stock_frequency == 'w' else \
5 if stock_frequency == 'm' else 6
log.debug('======笔形成最后一段未完成段判断是否是次级别的走势形成笔=======:%s %s' %
(stock_frequency, cur_ji))
x_date_list = quotes.index.values.tolist()
# for x_date in x_date_list:
# d = datetime.datetime.fromtimestamp(x_date/1000000000)
# print d.strftime("%Y-%m-%d %H:%M:%S.%f")
# print x_date_list
k_data = quotes
k_values = k_data.values
# 缠论k线
chanK = quotes if chanK_flag else chan.parse2ChanK(
k_data, k_values, chan_kdf=chanK_flag)
fenTypes, fenIdx = chan.parse2ChanFen(chanK)
# log.debug("code:%s fenTypes:%s fenIdx:%s k_data:%s" % (stock_code,fenTypes, fenIdx, len(k_data)))
biIdx, frsBiType = chan.parse2ChanBi(fenTypes,
fenIdx,
chanK,
least_khl_num=least_khl_num)
# log.debug("biIdx1:%s chanK:%s" % (biIdx, len(chanK)))
print("biIdx1:%s %s chanK:%s" %
(biIdx, str(chanK.index.values[biIdx[-1]])[:10], len(chanK)))
biIdx = con2Cxianduan(stock_code,
k_data,
chanK,
frsBiType,
biIdx,
end_date,
cur_ji,
least_init=least_init)
# log.debug("biIdx2:%s chanK:%s" % (biIdx, len(biIdx)))
chanKIdx = [(chanK.index[x]) for x in biIdx]
if len(biIdx) == 0 and len(chanKIdx) == 0:
print "BiIdx is None and chanKidx is None:%s" % (code)
return None
log.debug("con2Cxianduan:%s chanK:%s %s" %
(biIdx, len(chanK), chanKIdx[-1] if len(chanKIdx) > 0 else None))
# print quotes['close'].apply(lambda x:round(x,2))
# print '股票代码', get_security_info(stock_code).display_name
# print '股票代码', (stock_code), resample, least_khl_num
# 3.得到分笔结果，计算坐标显示
def plot_fenbi_seq(biIdx, frsBiType, plt=None, color=None):
x_fenbi_seq = []
y_fenbi_seq = []
for i in range(len(biIdx)):
if biIdx[i] is not None:
fenType = -frsBiType if i % 2 == 0 else frsBiType
# dt = chanK['enddate'][biIdx[i]]
# 缠论k线
dt = chanK.index[biIdx[i]] if chanK_flag else chanK['enddate'][
biIdx[i]]
# print i,k_data['high'][dt], k_data['low'][dt]
time_long = long(
time.mktime(
(dt + datetime.timedelta(hours=8)).timetuple()) *
1000000000)
# print x_date_list.index(time_long) if time_long in x_date_list else 0
if fenType == 1:
if plt is not None:
if color is None:
plt.text(x_date_list.index(time_long),
k_data['high'][dt],
str(k_data['high'][dt]),
ha='left',
fontsize=12)
else:
col_v = color[0] if fenType > 0 else color[1]
plt.text(x_date_list.index(time_long),
k_data['high'][dt],
str(k_data['high'][dt]),
ha='left',
fontsize=12,
bbox=dict(facecolor=col_v, alpha=0.5))
x_fenbi_seq.append(x_date_list.index(time_long))
y_fenbi_seq.append(k_data['high'][dt])
if fenType == -1:
if plt is not None:
if color is None:
plt.text(x_date_list.index(time_long),
k_data['low'][dt],
str(k_data['low'][dt]),
va='bottom',
fontsize=12)
else:
col_v = color[0] if fenType > 0 else color[1]
plt.text(x_date_list.index(time_long),
k_data['low'][dt],
str(k_data['low'][dt]),
va='bottom',
fontsize=12,
bbox=dict(facecolor=col_v, alpha=0.5))
x_fenbi_seq.append(x_date_list.index(time_long))
y_fenbi_seq.append(k_data['low'][dt])
# bottom_time = None
# for k_line_dto in m_line_dto.member_list[::-1]:
# if k_line_dto.low == m_line_dto.low:
# # get_price返回的日期，默认时间是08:00:00
# bottom_time = k_line_dto.begin_time.strftime('%Y-%m-%d') +' 08:00:00'
# break
# x_fenbi_seq.append(x_date_list.index(long(time.mktime(datetime.strptime(bottom_time, "%Y-%m-%d %H:%M:%S").timetuple())*1000000000)))
# y_fenbi_seq.append(m_line_dto.low)
return x_fenbi_seq, y_fenbi_seq
# print T0[-len(T0):].astype(dt.date)
T1 = T0[-len(T0):].astype(datetime.date) / 1000000000
Ti = []
if len(T0) / x_jizhun > 12:
x_jizhun = len(T0) / 12
for i in range(len(T0) / x_jizhun):
# print "len(T0)/x_jizhun:",len(T0)/x_jizhun
a = i * x_jizhun
d = datetime.date.fromtimestamp(T1[a])
# print d
T2 = d.strftime('$%Y-%m-%d$')
Ti.append(T2)
# print tab
d1 = datetime.date.fromtimestamp(T1[len(T0) - 1])
d2 = (d1 + datetime.timedelta(days=1)).strftime('$%Y-%m-%d$')
Ti.append(d2)
ll = Low.min() * 0.97
hh = High.max() * 1.03
# ht = HoverTool(tooltips=[
# ("date", "@date"),
# ("open", "@open"),
# ("close", "@close"),
# ("high", "@high"),
# ("low", "@low"),
# ("volume", "@volume"),
# ("money", "@money"),])
# TOOLS = [ht, WheelZoomTool(dimensions=['width']),\
# ResizeTool(), ResetTool(),\
# PanTool(dimensions=['width']), PreviewSaveTool()]
if show_mpl:
fig = plt.figure(figsize=(10, 6))
ax1 = plt.subplot2grid((10, 1), (0, 0), rowspan=8, colspan=1)
# ax1 = fig.add_subplot(2,1,1)
#fig = plt.figure()
#ax1 = plt.axes([0,0,3,2])
X = np.array(range(0, length))
pad_nan = X + nan
# 计算上 下影线
max_clop = Close.copy()
max_clop[Close < Open] = Open[Close < Open]
min_clop = Close.copy()
min_clop[Close > Open] = Open[Close > Open]
# 上影线
line_up = np.array([High, max_clop, pad_nan])
line_up = np.ravel(line_up, 'F')
# 下影线
line_down = np.array([Low, min_clop, pad_nan])
line_down = np.ravel(line_down, 'F')
# 计算上下影线对应的X坐标
pad_nan = nan + X
pad_X = np.array([X, X, X])
pad_X = np.ravel(pad_X, 'F')
# 画出实体部分,先画收盘价在上的部分
up_cl = Close.copy()
up_cl[Close <= Open] = nan
up_op = Open.copy()
up_op[Close <= Open] = nan
down_cl = Close.copy()
down_cl[Open <= Close] = nan
down_op = Open.copy()
down_op[Open <= Close] = nan
even = Close.copy()
even[Close != Open] = nan
# 画出收红的实体部分
pad_box_up = np.array([up_op, up_op, up_cl, up_cl, pad_nan])
pad_box_up = np.ravel(pad_box_up, 'F')
pad_box_down = np.array([down_cl, down_cl, down_op, down_op, pad_nan])
pad_box_down = np.ravel(pad_box_down, 'F')
pad_box_even = np.array([even, even, even, even, pad_nan])
pad_box_even = np.ravel(pad_box_even, 'F')
# X的nan可以不用与y一一对应
X_left = X - 0.25
X_right = X + 0.25
box_X = np.array([X_left, X_right, X_right, X_left, pad_nan])
# print box_X
box_X = np.ravel(box_X, 'F')
# print box_X
# Close_handle=plt.plot(pad_X,line_up,color='k')
vertices_up = np.array([box_X, pad_box_up]).T
vertices_down = np.array([box_X, pad_box_down]).T
vertices_even = np.array([box_X, pad_box_even]).T
handle_box_up = mat.patches.Polygon(vertices_up, color='r', zorder=1)
handle_box_down = mat.patches.Polygon(vertices_down,
color='g',
zorder=1)
handle_box_even = mat.patches.Polygon(vertices_even,
color='k',
zorder=1)
ax1.add_patch(handle_box_up)
ax1.add_patch(handle_box_down)
ax1.add_patch(handle_box_even)
handle_line_up = mat.lines.Line2D(pad_X,
line_up,
color='k',
linestyle='solid',
zorder=0)
handle_line_down = mat.lines.Line2D(pad_X,
line_down,
color='k',
linestyle='solid',
zorder=0)
ax1.add_line(handle_line_up)
ax1.add_line(handle_line_down)
v = [0, length, Open.min() - 0.5, Open.max() + 0.5]
plt.axis(v)
ax1.set_xticks(np.linspace(-2, len(Close) + 2, len(Ti)))
ax1.set_ylim(ll, hh)
ax1.set_xticklabels(Ti)
plt.grid(True)
plt.setp(plt.gca().get_xticklabels(),
rotation=30,
horizontalalignment='right')
'''
以上代码拷贝自https://www.joinquant.com/post/1756
感谢alpha-smart-dog
K线图绘制完毕
'''
# print "biIdx:%s chankIdx:%s"%(biIdx,str(chanKIdx[-1])[:10])
if show_mpl:
x_fenbi_seq, y_fenbi_seq = plot_fenbi_seq(biIdx, frsBiType, plt)
# plot_fenbi_seq(fenIdx,fenTypes[0], plt,color=['red','green'])
plot_fenbi_seq(fenIdx, frsBiType, plt, color=['red', 'green'])
else:
x_fenbi_seq, y_fenbi_seq = plot_fenbi_seq(biIdx, frsBiType, plt=None)
plot_fenbi_seq(fenIdx, frsBiType, plt=None, color=['red', 'green'])
# 在原图基础上添加分笔蓝线
inx_value = chanK.high.values
inx_va = [round(inx_value[x], 2) for x in biIdx]
log.debug("inx_va:%s count:%s" % (inx_va, len(quotes.high)))
log.debug("yfenbi:%s count:%s" % ([round(y, 2)
for y in y_fenbi_seq], len(chanK)))
j_BiType = [
-frsBiType if i % 2 == 0 else frsBiType for i in range(len(biIdx))
]
BiType_s = j_BiType[-1] if len(j_BiType) > 0 else -2
# bi_price = [str(chanK.low[idx]) if i % 2 == 0 else str(chanK.high[idx]) for i,idx in enumerate(biIdx)]
# print ("笔 :%s %s"%(biIdx,bi_price))
# fen_dt = [str(chanK.index[fenIdx[i]])[:10] if chanK_flag else str(chanK['enddate'][fenIdx[i]])[:10]for i in range(len(fenIdx))]
fen_dt = [(chanK.index[fenIdx[i]]) if chanK_flag else
(chanK['enddate'][fenIdx[i]]) for i in range(len(fenIdx))]
if len(fenTypes) > 0:
if fenTypes[0] == -1:
# fen_price = [str(k_data.low[idx]) if i % 2 == 0 else str(k_data.high[idx]) for i,idx in enumerate(fen_dt)]
low_fen = [idx for i, idx in enumerate(fen_dt) if i % 2 == 0]
high_fen = [idx for i, idx in enumerate(fen_dt) if i % 2 <> 0]
else:
# fen_price = [str(k_data.high[idx]) if i % 2 == 0 else str(k_data.low[idx]) for i,idx in enumerate(fen_dt)]
high_fen = [idx for i, idx in enumerate(fen_dt) if i % 2 == 0]
low_fen = [idx for i, idx in enumerate(fen_dt) if i % 2 <> 0]
# fen_duration =[fenIdx[i] - fenIdx[i -1 ] if i >0 else 0 for i,idx in enumerate(fenIdx)]
else:
# fen_price = fenTypes
# fen_duration = fenTypes
low_fen = []
high_fen = []
# fen_dt = [str(k_data.index[idx])[:10] for i,idx in enumerate(fenIdx)]
# print low_fen,high_fen
def dataframe_mode_round(df):
roundlist = [1, 0]
df_mode = []
# df.high.cummin().value_counts()
for i in roundlist:
df_mode = df.apply(lambda x: round(x, i)).mode()
if len(df_mode) > 0:
break
return df_mode
kdl = k_data.loc[low_fen].low
kdl_mode = dataframe_mode_round(kdl)
kdh = k_data.loc[high_fen].high
kdh_mode = dataframe_mode_round(kdh)
print("kdl:%s" % (kdl.values))
print("kdh:%s" % (kdh.values))
print("kdl_mode:%s kdh_mode%s chanKidx:%s" %
(kdl_mode.values, kdh_mode.values, str(chanKIdx[-1])[:10]))
lastdf = k_data[k_data.index >= chanKIdx[-1]]
if BiType_s == -1:
keydf = lastdf[((lastdf.close >= kdl_mode.max()) &
(lastdf.low >= kdl_mode.max()))]
elif BiType_s == 1:
keydf = lastdf[((lastdf.close >= kdh_mode.max()) &
(lastdf.high >= kdh_mode.min()))]
else:
keydf = lastdf[((lastdf.close >= kdh_mode.max()) &
(lastdf.high >= kdh_mode.min())) |
((lastdf.close <= kdl_mode.min()) &
(lastdf.low <= kdl_mode.min()))]
print("BiType_s:%s keydf:%s key:%s" %
(BiType_s, None if len(keydf) == 0 else str(
keydf.index.values[0])[:10], len(keydf)))
# return BiType_s,None if len(keydf) == 0 else str(keydf.index.values[0])[:10],len(keydf)
# import ipdb;ipdb.set_trace()
log.debug("Fentype:%s " % (fenTypes))
log.debug("fenIdx:%s " % (fenIdx))
# print ("fen_duration:%s "%(fen_duration))
# print ("fen_price:%s "%(fen_price))
# print ("fendt:%s "%(fen_dt))
print("BiType :%s frsBiType:%s" % (j_BiType, frsBiType))
if len(j_BiType) > 0:
if j_BiType[0] == -1:
tb_price = [
str(quotes.low[idx]) if i % 2 == 0 else str(quotes.high[idx])
for i, idx in enumerate(x_fenbi_seq)
]
else:
tb_price = [
str(quotes.high[idx]) if i % 2 == 0 else str(quotes.low[idx])
for i, idx in enumerate(x_fenbi_seq)
]
tb_duration = [
x_fenbi_seq[i] - x_fenbi_seq[i - 1] if i > 0 else 0
for i, idx in enumerate(x_fenbi_seq)
]
else:
tb_price = j_BiType
tb_duration = j_BiType
print "图笔 :", x_fenbi_seq, tb_price
print "图笔dura :", tb_duration
# 线段画到笔上
xdIdxs, xfenTypes = chan.parse2ChanXD(frsBiType, biIdx, chanK)
print '线段', xdIdxs, xfenTypes
x_xd_seq = []
y_xd_seq = []
for i in range(len(xdIdxs)):
if xdIdxs[i] is not None:
fenType = xfenTypes[i]
# dt = chanK['enddate'][biIdx[i]]
# 缠论k线
dt = chanK.index[xdIdxs[i]] if chanK_flag else chanK['enddate'][
xdIdxs[i]]
# print k_data['high'][dt], k_data['low'][dt]
time_long = long(
time.mktime((dt + datetime.timedelta(hours=8)).timetuple()) *
1000000000)
# print x_date_list.index(time_long) if time_long in x_date_list else 0
if fenType == 1:
x_xd_seq.append(x_date_list.index(time_long))
y_xd_seq.append(k_data['high'][dt])
if fenType == -1:
x_xd_seq.append(x_date_list.index(time_long))
y_xd_seq.append(k_data['low'][dt])
# bottom_time = None
# for k_line_dto in m_line_dto.member_list[::-1]:
# if k_line_dto.low == m_line_dto.low:
# # get_price返回的日期，默认时间是08:00:00
# bottom_time = k_line_dto.begin_time.strftime('%Y-%m-%d') +' 08:00:00'
# break
# x_fenbi_seq.append(x_date_list.index(long(time.mktime(datetime.strptime(bottom_time, "%Y-%m-%d %H:%M:%S").timetuple())*1000000000)))
# y_fenbi_seq.append(m_line_dto.low)
# 在原图基础上添加分笔蓝线
print("线段 :%s" % (x_xd_seq))
print("笔值 :%s" % ([str(x) for x in (y_xd_seq)]))
# Y_hat = X * b + a
if show_mpl:
plt.plot(x_fenbi_seq, y_fenbi_seq)
plt.legend([stock_code, cname], loc=0)
plt.title(stock_code + " | " + cname + " | " +
str(quotes.index[-1])[:10],
fontsize=14)
plt.plot(x_xd_seq, y_xd_seq)
if len(quotes) > windows:
roll_mean = pd.rolling_mean(quotes.close, window=windows)
plt.plot(roll_mean, 'r')
zp = zoompan.ZoomPan()
figZoom = zp.zoom_factory(ax1, base_scale=1.1)
figPan = zp.pan_factory(ax1)
'''#subplot2 bar
ax2 = plt.subplot2grid((10, 1), (8, 0), rowspan=2, colspan=1)
# ax2.plot(quotes.vol)
# ax2.set_xticks(np.linspace(-2, len(quotes) + 2, len(Ti)))
ll = min(quotes.vol.values.tolist()) * 0.97
hh = max(quotes.vol.values.tolist()) * 1.03
ax2.set_ylim(ll, hh)
# ax2.set_xticklabels(Ti)
# plt.hist(quotes.vol, histtype='bar', rwidth=0.8)
plt.bar(x_date_list,quotes.vol, label="Volume", color='b')
'''
#画Volume no tight_layout()
'''
pad = 0.25
yl = ax1.get_ylim()
ax1.set_ylim(yl[0]-(yl[1]-yl[0])*pad,yl[1])
ax2 = ax1.twinx()
ax2.set_position(mat.transforms.Bbox([[0.125,0.1],[0.9,0.32]]))
volume = np.asarray(quotes.amount)
pos = quotes['open']-quotes['close']<0
neg = quotes['open']-quotes['close']>=0
idx = quotes.reset_index().index
ax2.bar(idx[pos],volume[pos],color='red',width=1,align='center')
ax2.bar(idx[neg],volume[neg],color='green',width=1,align='center')
yticks = ax2.get_yticks()
ax2.set_yticks(yticks[::3])
'''
# same sharex
plt.subplots_adjust(left=0.05,
bottom=0.08,
right=0.95,
top=0.95,
wspace=0.15,
hspace=0.00)
plt.setp(ax1.get_xticklabels(), visible=False)
yl = ax1.get_ylim()
# ax2 = plt.subplot(212, sharex=ax1)
ax2 = plt.subplot2grid((10, 1), (8, 0),
rowspan=2,
colspan=1,
sharex=ax1)
# ax2.set_position(mat.transforms.Bbox([[0.125,0.1],[0.9,0.32]]))
volume = np.asarray(quotes.amount)
pos = quotes['open'] - quotes['close'] < 0
neg = quotes['open'] - quotes['close'] >= 0
idx = quotes.reset_index().index
ax2.bar(idx[pos], volume[pos], color='red', width=1, align='center')
ax2.bar(idx[neg], volume[neg], color='green', width=1, align='center')
yticks = ax2.get_yticks()
ax2.set_yticks(yticks[::3])
# plt.tight_layout()
# plt.subplots_adjust(hspace=0.00, bottom=0.08)
plt.xticks(rotation=15, horizontalalignment='center')
# plt.bar(x_date_list,quotes.vol, label="Volume", color='b')
# quotes['vol'].plot(kind='bar', ax=ax2, color='g', alpha=0.1)
# ax2.set_ylim([0, ax2.get_ylim()[1] * 2])
# plt.gcf().subplots_adjust(bottom=0.15)
# fig.subplots_adjust(left=0.05, bottom=0.08, right=0.95, top=0.95, wspace=0.15, hspace=0.25)
#scale the x-axis tight
# ax2.set_xlim(min(x_date_list),max(x_date_list))
# the y-ticks for the bar were too dense, keep only every third one
# plt.grid(True)
# plt.xticks(rotation=30, horizontalalignment='center')
# plt.setp( axs[1].xaxis.get_majorticklabels(), rotation=70 )
# plt.legend()
# plt.tight_layout()
# plt.draw()
# plt.show()
plt.show(block=False)
def bars(scheme, verbose=None, norm='load'):
"""
Figure to compare link proportional and usage proportional for a single
scheme and put them in ./sensitivity/figures/scheme/
"""
# Load data and results
F = abs(np.load('./results/' + scheme + '-flows.npy'))
quantiles = np.load('./results/quantiles_' + scheme + '_' + str(lapse) + '.npy')
nNodes = 30
names = node_namer(N) # array of node labels
links = range(len(F))
nodes = np.linspace(0.5, 2 * nNodes - 1.5, nNodes)
nodes_shift = nodes + .5
for direction in directions:
N_usages = np.load('./results/Node_contrib_' + scheme + '_' + direction + '_' + str(lapse) + '.npy')
# Compare node transmission to mean load
if verbose:
print('Plotting node comparison - ' + scheme + ' - ' + direction)
# sort node names for x-axis
Total_usage = np.sum(N_usages, 1)
node_ids = np.array(range(len(N))).reshape((len(N), 1))
node_mean_load = [n.mean for n in N]
# Vector for normalisation
if norm == 'cap':
normVec = np.ones(nNodes) * sum(quantiles)
else:
normVec = node_mean_load
# Calculate node proportional
EU_load = np.sum(node_mean_load)
Total_caps = sum(quantiles)
Node_proportional = node_mean_load / EU_load * Total_caps / normVec
Node_proportional = np.reshape(Node_proportional, (len(Node_proportional), 1))
# Calculate link proportional
link_proportional = linkProportional(N, link_dic, quantiles)
link_proportional = [link_proportional[i] / normVec[i] for i in range(nNodes)]
# Calculate old usage proportional
if direction == 'combined':
old_usages = np.load('./linkcolouring/old_' + scheme + '_copper_link_mix_import_all_alpha=same.npy')
old_usages += np.load('./linkcolouring/old_' + scheme + '_copper_link_mix_export_all_alpha=same.npy')
else:
old_usages = np.load('./linkcolouring/old_' + scheme + '_copper_link_mix_' + direction + '_all_alpha=same.npy')
avg_node_usage = np.sum(np.sum(old_usages, axis=2), axis=0) / 70128.
avg_EU_usage = np.sum(np.sum(np.sum(old_usages, axis=2), axis=0)) / 70128.
avg_node_usage /= avg_EU_usage
avg_node_usage /= normVec
avg_node_usage *= 500000
# Calculate usage and sort countries by mean load
normed_usage = Total_usage / normVec
normed_usage = np.reshape(normed_usage, (len(normed_usage), 1))
node_mean_load = np.reshape(node_mean_load, (len(node_mean_load), 1))
data = np.hstack([normed_usage, node_ids, node_mean_load, link_proportional, Node_proportional])
data_sort = data[data[:, 2].argsort()]
names_sort = [names[int(i)] for i in data_sort[:, 1]]
# flip order so largest is first
names_sort = names_sort[::-1]
link_proportional = data_sort[:, 3][::-1]
Node_proportional = data_sort[:, 4][::-1]
data_sort = data_sort[:, 0][::-1]
plt.figure(figsize=(10, 4), facecolor='w', edgecolor='k')
ax = plt.subplot(111)
green = '#009900'
blue = '#000099'
# Plot node proportional
plt.rc('lines', lw=2)
plt.rc('lines', dash_capstyle='round')
plt.plot(np.linspace(0, len(N) * 2 + 2, len(N)), Node_proportional, '--k')
# Plot link proportional
#plt.bar(nodes, link_proportional, width=1, color=green, edgecolor='none')
# Plot old usage proportional
plt.bar(nodes, avg_node_usage[loadOrder], width=1, color=green, edgecolor='none')
# Plot usage proportional
plt.bar(nodes_shift, data_sort, width=1, color=blue, edgecolor='none')
# Magic with ticks and labels
ax.set_xticks(np.linspace(2, len(N) * 2 + 2, len(N) + 1))
ax.set_xticklabels(names_sort, rotation=60, ha="right", va="top", fontsize=10.5)
ax.xaxis.grid(False)
ax.xaxis.set_tick_params(width=0)
if norm == 'cap':
ax.set_ylabel(r'$M_n/ \mathcal{K}^T$')
else:
# ax.set_ylabel(r'Network usage [MW$_T$/MW$_L$]')
ax.set_ylabel(r'$M_n/\left\langle L_n \right\rangle$')
maxes = [max(avg_node_usage), max(data_sort)]
plt.axis([0, nNodes * 2 + .5, 0, 1.15 * max(maxes)])
# Legend
artists = [plt.Line2D([0, 0], [0, 0], ls='dashed', lw=2.0, c='k'), plt.Rectangle((0, 0), 0, 0, ec=green, fc=green), plt.Rectangle((0, 0), 0, 0, ec=blue, fc=blue)]
LABS = ['$M^1$', '$M^{3}_{old}$', '$M^{3}_{new}$']
leg = plt.legend(artists, LABS, loc='upper left', ncol=len(artists), columnspacing=0.6, borderpad=0.4, borderaxespad=0.0, handletextpad=0.2, handleheight=1.2)
leg.get_frame().set_alpha(0)
leg.get_frame().set_edgecolor('white')
ltext = leg.get_texts()
plt.setp(ltext, fontsize=12) # the legend text fontsize
plt.savefig(figPath + scheme + '/network-usage-' + direction + '-' + norm + '.png', bbox_inches='tight')
if verbose:
print('Saved figures to ./figures/compareUsage/' + scheme + '/network-usage-' + direction + '-' + norm + '.png')
yy = yy.astype(np.float)
dimx = float(dimx)
dimy=float(dimy)
nTimesInX = np.floor(xx / M).max() + 1
seg_cpu = np.floor(yy / M) * nTimesInX + np.floor(xx / M)
seg_cpu = seg_cpu.astype(np.int32)
return seg_cpu
def random_permute_seg(seg):
p=np.random.permutation(seg.max()+1)
seg2 = np.zeros_like(seg)
for c in range(seg.max()+1):
seg2[seg==c]=p[c]
return seg2.astype(np.int32)
if __name__ == "__main__":
tic = time.clock()
seg= get_init_seg(500, 500,17,True)
# seg= get_init_seg(512, 512,50,False)
toc = time.clock()
print toc-tic
print 'k = ', seg.max()+1
plt.figure(1)
plt.clf()
plt.imshow(seg,interpolation="Nearest")
plt.axis('scaled')
def plot_variable(u, name, direc, cmap=cmaps.parula, scale='lin', numLvls=100,
umin=None, umax=None, \
tp=False, \
tpAlpha=1.0, show=False,
hide_ax_tick_labels=False, label_axes=True, title='',
use_colorbar=True, hide_axis=False, colorbar_loc='right'):
"""
show -- whether to show the plot on the screen
tp -- show triangle
cmap -- colors:
gist_yarg - grey
gnuplot, hsv, gist_ncar
jet - typical colors
"""
mesh = u.function_space().mesh()
v = u.compute_vertex_values(mesh)
x = mesh.coordinates()[:,0]
y = mesh.coordinates()[:,1]
t = mesh.cells()
if not os.path.isdir( direc ):
os.makedirs(direc)
full_path = os.path.join(direc, name)
if umin != None:
vmin = umin
else:
vmin = v.min()
if umax != None:
vmax = umax
else:
vmax = v.max()
# countour levels :
if scale == 'log':
v[v < vmin] = vmin + 1e-12
v[v > vmax] = vmax - 1e-12
from matplotlib.ticker import LogFormatter
levels = np.logspace(np.log10(vmin), np.log10(vmax), numLvls)
tick_numLvls = min( numLvls, 8 )
tick_levels = np.logspace(np.log10(vmin), np.log10(vmax), tick_numLvls)
formatter = LogFormatter(10, labelOnlyBase=False)
norm = colors.LogNorm()
elif scale == 'lin':
v[v < vmin] = vmin + 1e-12
v[v > vmax] = vmax - 1e-12
from matplotlib.ticker import ScalarFormatter
levels = np.linspace(vmin, vmax, numLvls)
tick_numLvls = min( numLvls, 8 )
tick_levels = np.linspace(vmin, vmax, tick_numLvls)
formatter = ScalarFormatter()
norm = None
elif scale == 'bool':
from matplotlib.ticker import ScalarFormatter
levels = [0, 1, 2]
formatter = ScalarFormatter()
norm = None
fig = plt.figure(figsize=(5,5))
ax = fig.add_subplot(111)
c = ax.tricontourf(x, y, t, v, levels=levels, norm=norm,
cmap=plt.get_cmap(cmap))
plt.axis('equal')
if tp == True:
p = ax.triplot(x, y, t, '-', lw=0.2, alpha=tpAlpha)
ax.set_xlim([x.min(), x.max()])
ax.set_ylim([y.min(), y.max()])
if label_axes:
ax.set_xlabel(r'$x$')
ax.set_ylabel(r'$y$')
if hide_ax_tick_labels:
ax.set_xticklabels([])
ax.set_yticklabels([])
if hide_axis:
plt.axis('off')
# include colorbar :
if scale != 'bool' and use_colorbar:
divider = make_axes_locatable(plt.gca())
cax = divider.append_axes(colorbar_loc, "5%", pad="3%")
cbar = plt.colorbar(c, cax=cax, format=formatter,
ticks=tick_levels)
tit = plt.title(title)
if use_colorbar:
plt.tight_layout(rect=[.03,.03,0.97,0.97])
else:
plt.tight_layout()
plt.savefig( full_path + '.eps', dpi=300)
if show:
plt.show()
plt.close(fig)
def freqz(ofb, length_sec=6, ffilt=False, plot=True):
"""Computes the IR and FRF of a digital filter.
Parameters
----------
ofb : FractionalOctaveFilterbank object
length_sec : scalar
Length of the impulse response test signal.
ffilt : bool
Backard forward filtering. Effectiv order is doubled then.
plot : bool
Create Plots or not.
Returns
-------
x : ndarray
Impulse test signal.
y : ndarray
Impules responses signal of the filters.
f : ndarray
Frequency vector for the FRF.
Y : Frequency response (FRF) of the summed filters.
"""
from pylab import np, plt, fft, fftfreq
x = np.zeros(length_sec*ofb.sample_rate)
x[length_sec*ofb.sample_rate/2] = 0.9999
if not ffilt:
y, states = ofb.filter_mimo_c(x)
y = y[:, :, 0]
else:
y, states = ofb.filter(x, ffilt=ffilt)
s = np.zeros(len(x))
for i in range(y.shape[1]):
s += y[:, i]
X = fft(y[:, i]) # sampled frequency response
f = fftfreq(len(x), 1.0/ofb.sample_rate)
if plot:
fig = plt.figure('freqz filter bank')
plt.grid(True)
plt.axis([0, ofb.sample_rate / 2, -100, 5])
L = 20*np.log10(np.abs(X[:len(x)/2]) + 1e-17)
plt.semilogx(f[:len(x)/2], L, lw=0.5)
plt.hold(True)
Y = fft(s)
if plot:
plt.title('freqz() Filter Bank')
plt.xlabel('Frequency / Hz')
plt.ylabel('Damping /dB(FS)')
plt.xlim((10, ofb.sample_rate/2))
plt.hold(False)
plt.figure('sum')
L = 20*np.log10(np.abs(Y[:len(x)/2]) + 1e-17)
plt.semilogx(f[:len(x)/2], L, lw=0.5)
level_input = 10*np.log10(np.sum(x**2))
level_output = 10*np.log10(np.sum(s**2))
plt.axis([5, ofb.sample_rate/1.8, -50, 5])
plt.grid(True)
plt.title('Sum of filter bands')
plt.xlabel('Frequency / Hz')
plt.ylabel('Damping /dB(FS)')
print('sum level', level_output, level_input)
return x, y, f, Y
stds = np.std(error, axis=1)
nodeMean = np.mean(means)
weightedNodeMean = np.mean(weightedMeans)
x = np.linspace(.5, 29.5, 30)
if mode == 'linear': title = 'localised'
if mode == 'square': title = 'synchronised'
plt.figure()
ax = plt.subplot()
plt.errorbar(x, means[loadOrder], yerr=stds * 0, marker='s', lw=0, elinewidth=1)
plt.plot([0, 30], [nodeMean, nodeMean], '--k', lw=2)
plt.title(title + ' ' + direction + ', sum of colors vs. total network usage')
plt.ylabel('Mean link deviation in %')
ax.set_xticks(np.linspace(1, 30, 30))
ax.set_xticklabels(loadNames, rotation=60, ha="right", va="top", fontsize=9)
plt.axis([0, 30, min(means) - (.1 * min(means)), max(means) + (.1 * max(means))])
plt.legend(('individual country', 'mean of countries'), loc=2, ncol=2)
plt.savefig(figPath + 'error/' + title + '_' + direction + '.pdf', bbox_inches='tight')
plt.figure()
ax = plt.subplot()
plt.errorbar(x, weightedMeans[loadOrder], yerr=stds * 0, marker='s', lw=0, elinewidth=1)
plt.plot([0, 30], [weightedNodeMean, weightedNodeMean], '--k', lw=2)
plt.title(title + ' ' + direction + ', sum of colors vs. total network usage')
plt.ylabel(r'Weighed mean link deviation in % normalised to $\left\langle \mathcal{K}^T \right\rangle$')
ax.set_xticks(np.linspace(1, 30, 30))
ax.set_xticklabels(loadNames, rotation=60, ha="right", va="top", fontsize=9)
plt.axis([0, 30, min(weightedMeans) - (.1 * min(weightedMeans)), max(weightedMeans) + (.1 * max(weightedMeans))])
plt.legend(('individual country', 'mean of countries'), loc=2, ncol=2)
plt.savefig(figPath + 'error/' + 'weighted_' + title + '_' + direction + '.pdf', bbox_inches='tight')
plt.close()
def example(tess='I',
base=[2, 2, 2],
nLevels=1,
zero_v_across_bdry=[True] * 3,
vol_preserve=False,
nRows=100,
nCols=100,
nSlices=100,
use_mayavi=False,
eval_v=False,
eval_cell_idx=False):
tw = TransformWrapper(nRows=nRows,
nCols=nCols,
nSlices=nSlices,
nLevels=nLevels,
base=base,
zero_v_across_bdry=zero_v_across_bdry,
tess=tess,
valid_outside=False,
only_local=False,
vol_preserve=vol_preserve)
print_iterable(tw.ms.L_cpa_space)
print tw
# create some fake 3D image.
img = np.zeros((nCols, nRows, nSlices), dtype=np.float64)
# img[:]=np.random.random_integers(0,255,img.shape)
# Fill the image with the x coordinates as fake values
img[:] = tw.pts_src_dense.cpu[:, 0].reshape(img.shape)
img0 = CpuGpuArray(img.copy().astype(np.float64))
img_wrapped_fwd = CpuGpuArray.zeros_like(img0)
img_wrapped_inv = CpuGpuArray.zeros_like(img0)
seed = 0
np.random.seed(seed)
ms_Avees = tw.get_zeros_PA_all_levels()
ms_theta = tw.get_zeros_theta_all_levels()
if tess == 'II':
for level in range(tw.ms.nLevels):
cpa_space = tw.ms.L_cpa_space[level]
Avees = ms_Avees[level]
# 1/0
if level == 0:
tw.sample_gaussian(level,
ms_Avees[level],
ms_theta[level],
mu=None) # zero mean
# ms_theta[level].fill(0)
# ms_theta[level][-4]=10
cpa_space.theta2Avees(theta=ms_theta[level], Avees=Avees)
else:
tw.sample_from_the_ms_prior_coarse2fine_one_level(
ms_Avees, ms_theta, level_fine=level)
else:
# For tess='I' in 3D, I have yet to implement the coarse-to-fine sampling.
for level in range(tw.ms.nLevels):
cpa_space = tw.ms.L_cpa_space[level]
velTess = cpa_space.zeros_velTess()
ms_Avees[level].fill(0)
Avees = ms_Avees[level]
tw.sample_gaussian_velTess(level, Avees, velTess, mu=None)
print 'img shape:', img0.shape
# You don't have use these. You can use any 2d array
# that has 3 columns (regardless of the number of rows).
pts_src = tw.pts_src_dense
pts_src = CpuGpuArray(pts_src.cpu[::1].copy())
# Create a buffer for the output
pts_fwd = CpuGpuArray.zeros_like(pts_src)
pts_inv = CpuGpuArray.zeros_like(pts_src)
for level in range(tw.ms.nLevels):
tw.update_pat_from_Avees(ms_Avees[level], level)
if eval_v:
# Evaluating the velocity field.
# You don't have to do it in unless you want to visualize v.
# (when evaluting the treansformation, v will be internally
# evaluated anyway -- but its result won't be stored)
tw.calc_v(level=level)
print 'level', level
print
print 'number of points:', len(pts_src)
print 'number of cells:', tw.ms.L_cpa_space[level].nC
# optional, if you want to time it
timer_gpu_T_fwd = GpuTimer()
# Simply calling
# tic = time.clock()
# and then
# tic = time.clock()
# won't work.
# In fact, most likely you will get that toc-tic is zero.
# You need to use the GpuTimer object. When you do that,
# one side effect is that suddenly the toc-tic from above will
# give you a more realistic result.
tic = time.clock()
timer_gpu_T_fwd.tic()
tw.calc_T_fwd(pts_src, pts_fwd, level=level)
timer_gpu_T_fwd.toc()
toc = time.clock()
print 'Time, in sec, for computing T_fwd:'
print timer_gpu_T_fwd.secs
print toc - tic # likely to be 0, unless you also used the GpuTimer.
# You can also time the inv of course. Results will be similar.
tw.calc_T_inv(pts_src, pts_inv, level=level)
if eval_cell_idx:
# cell_idx is computed here just for display.
cell_idx = CpuGpuArray.zeros(len(pts_src), dtype=np.int32)
tw.calc_cell_idx(pts_src, cell_idx, level)
tw.remap_fwd(pts_inv, img0, img_wrapped_fwd)
tw.remap_inv(pts_fwd, img0, img_wrapped_inv)
# For display purposes, do gpu2cpu transfer
print "For display purposes, do gpu2cpu transfer"
if eval_cell_idx:
cell_idx.gpu2cpu()
if eval_v:
tw.v_dense.gpu2cpu()
pts_fwd.gpu2cpu()
pts_inv.gpu2cpu()
img_wrapped_fwd.gpu2cpu()
img_wrapped_inv.gpu2cpu()
if use_mayavi:
ds = 1 # downsampling factor
i = 17
pts_src_grid = pts_src.cpu.reshape(tw.nRows, tw.nCols, -1, 3)
pts_src_ds = pts_src_grid[::ds, ::ds, i].reshape(-1, 3)
pts_fwd_grid = pts_fwd.cpu.reshape(tw.nRows, tw.nCols, -1, 3)
pts_fwd_ds = pts_fwd_grid[::ds, ::ds, i].reshape(-1, 3)
pts_inv_grid = pts_inv.cpu.reshape(tw.nRows, tw.nCols, -1, 3)
pts_inv_ds = pts_inv_grid[::ds, ::ds, i].reshape(-1, 3)
from of.my_mayavi import *
mayavi_mlab_close_all()
mayavi_mlab_figure_bgwhite('src')
x, y, z = pts_src_ds.T
mayavi_mlab_plot3d(x, y, z)
mayavi_mlab_figure_bgwhite('fwd')
x, y, z = pts_fwd_ds.T
mayavi_mlab_plot3d(x, y, z)
figsize = (12, 12)
plt.figure(figsize=figsize)
i = 17 # some slice
plt.subplot(131)
plt.imshow(img0.cpu[:, :, i].astype(np.uint8), interpolation="Nearest")
plt.title('slice from img')
plt.subplot(132)
plt.imshow(img_wrapped_fwd.cpu[:, :, i].astype(np.uint8),
interpolation="Nearest")
plt.axis('off')
plt.title('slice from fwd(img)')
plt.subplot(133)
plt.imshow(img_wrapped_inv.cpu[:, :, i].astype(np.uint8),
interpolation="Nearest")
plt.axis('off')
plt.title('slice from inv(img)')
if 0: # debug
cpa_space = tw.ms.L_cpa_space[level]
if eval_v:
vx = tw.v_dense.cpu[:, 0].reshape(
cpa_space.x_dense_grid_img.shape[1:])
vy = tw.v_dense.cpu[:, 1].reshape(
cpa_space.x_dense_grid_img.shape[1:])
vz = tw.v_dense.cpu[:, 2].reshape(
cpa_space.x_dense_grid_img.shape[1:])
plt.figure()
plt.imshow(vz[:, :, 17], interpolation="Nearest")
plt.colorbar()
plt.title('vz in some slice')
return tw
def freqz(ofb, length_sec=6, ffilt=False, plot=True):
"""Computes the IR and FRF of a digital filter.
Parameters
----------
ofb : FractionalOctaveFilterbank object
length_sec : scalar
Length of the impulse response test signal.
ffilt : bool
Backard forward filtering. Effectiv order is doubled then.
plot : bool
Create Plots or not.
Returns
-------
x : ndarray
Impulse test signal.
y : ndarray
Impules responses signal of the filters.
f : ndarray
Frequency vector for the FRF.
Y : Frequency response (FRF) of the summed filters.
"""
from pylab import np, plt, fft, fftfreq
x = np.zeros(length_sec * ofb.sample_rate)
x[int(length_sec * ofb.sample_rate / 2)] = 0.9999
if not ffilt:
y, states = ofb.filter_mimo_c(x)
y = y[:, :, 0]
else:
y, states = ofb.filter(x, ffilt=ffilt)
s = np.zeros(len(x))
len_x_2 = int(len(x) / 2)
for i in range(y.shape[1]):
s += y[:, i]
X = fft(y[:, i]) # sampled frequency response
f = fftfreq(len(x), 1.0 / ofb.sample_rate)
if plot:
fig = plt.figure('freqz filter bank')
plt.grid(True)
plt.axis([0, ofb.sample_rate / 2, -100, 5])
L = 20 * np.log10(np.abs(X[:len_x_2]) + 1e-17)
plt.semilogx(f[:len_x_2], L, lw=0.5)
Y = fft(s)
if plot:
plt.title(u'freqz() Filter Bank')
plt.xlabel('Frequency / Hz')
plt.ylabel(u'Damping /dB(FS)')
plt.xlim((10, ofb.sample_rate / 2))
plt.figure('sum')
L = 20 * np.log10(np.abs(Y[:len_x_2]) + 1e-17)
plt.semilogx(f[:len_x_2], L, lw=0.5)
level_input = 10 * np.log10(np.sum(x**2))
level_output = 10 * np.log10(np.sum(s**2))
plt.axis([5, ofb.sample_rate / 1.8, -50, 5])
plt.grid(True)
plt.title('Sum of filter bands')
plt.xlabel('Frequency / Hz')
plt.ylabel(u'Damping /dB(FS)')
print('sum level', level_output, level_input)
return x, y, f, Y
def usagePlotter(direction):
"""
Scatter plots of nodes' import/export usages of links saved to ./figures/.
"""
legendNames = ['diagonal', r'$99\%$ quantile', 'avg. usage', 'usage']
modes = ['linear', 'square']
modeNames = ['localised', 'synchronised']
names = ['usageS', 'usageW']
colors = ['#ffa500', '#0000aa']
for mode in modes:
N = EU_Nodes_usage(mode + '.npz')
F = np.load('./results/' + mode + '-flows.npy')
Fmax = np.max(np.abs(F), 1)
nodes = len(N)
links = F.shape[0]
usageS = np.load(outPath + mode + '_' + direction + '_' + 'usageS.npy')
usageW = np.load(outPath + mode + '_' + direction + '_' + 'usageW.npy')
if mode == 'square':
usageB = np.load(outPath + mode + '_' + direction + '_' + 'usageB.npy')
names.append('usageB')
colors.append('#874a2b')
for node in xrange(nodes):
nodeLabel = N[node].label
nodePath = figPath + 'usage/' + nodeLabel.tostring()
if not os.path.exists(nodePath):
os.makedirs(nodePath)
for link in xrange(links):
linkLabel = link_label(link, N)
linkflow = abs(F[link, :])
qq = get_q(abs(F[link]), .99)
plt.figure()
ax = plt.subplot()
nBins = 90
totUsage = np.zeros((nBins))
for i, color in enumerate(names):
usages = eval(color)
usages = usages[link, node, :] / linkflow
F_vert = np.reshape(linkflow, (len(linkflow), 1))
exp_vert = np.reshape(usages, (len(usages), 1))
F_matrix = np.hstack([F_vert, exp_vert])
F_matrix[F_matrix[:, 0].argsort()]
H, bin_edges = binMaker(F_matrix, qq, lapse=70128, nbins=nBins)
plt.plot(bin_edges / qq, H[:, 1], '-', c=colors[i], lw=2)
totUsage += H[:, 1]
plt.plot(bin_edges / qq, totUsage, '-', c="#aa0000", lw=2)
plt.axis([0, 1, 0, 1])
ax.set_xticks(np.linspace(0, 1, 11))
plt.xlabel(r'$|F_l|/\mathcal{K}_l^T$')
plt.ylabel(r'$\left\langle H_{ln} \right\rangle /|F_l|$')
if mode == 'square':
modeName = modeNames[1]
plt.legend(('solar usage', 'wind usage', 'backup usage', 'total usage'), loc=1)
else:
modeName = modeNames[0]
plt.legend(('solar usage', 'wind usage', 'total usage'), loc=1)
plt.title(nodeLabel.tostring() + ' ' + modeName + ' ' + direction + ' flows on link ' + linkLabel)
plt.savefig(nodePath + '/' + str(link) + '_' + modeName + '_' + direction + '.pdf', bbox_inches='tight')
plt.close()
def link_level_hour(levels, usages, quantiles, scheme, direction, color, nnames, lnames, admat=None):
"""
Make a color mesh of a node's average hourly usage of links at different
levels.
"""
if not admat:
admat = np.genfromtxt('./settings/eadmat.txt')
if color == 'solar':
cmap = Oranges_cmap
elif color == 'wind':
cmap = Blues_cmap
elif color == 'backup':
cmap = 'Greys'
links, nodes, lapse = usages.shape
usages = np.reshape(usages, (links, nodes, lapse / 24, 24))
totalHour = np.zeros((levels, 24))
totalNormed = np.zeros((levels, 24))
for node in range(nodes):
nl = neighbor_levels(node, levels, admat)
hourSums = np.zeros((levels, 24))
for lvl in range(levels):
ll = link_level(nl, lvl, nnames, lnames)
ll = np.array(ll, dtype='int')
meanSum = np.sum(np.mean(usages[ll, node], axis=1), axis=0)
linkSum = sum(quantiles[ll])
hourSums[lvl] = meanSum / linkSum
totalHour += hourSums
plt.figure(figsize=(9, 3))
ax = plt.subplot()
plt.pcolormesh(hourSums, cmap=cmap)
plt.colorbar().set_label(label=r'$U_n^{(l)}$', size=11)
ax.set_yticks(np.linspace(.5, levels - .5, levels))
ax.set_yticklabels(range(1, levels + 1))
ax.yaxis.set_tick_params(width=0)
ax.xaxis.set_tick_params(width=0)
ax.set_xticks(np.linspace(.5, 23.5, 24))
ax.set_xticklabels(np.array(np.linspace(1, 24, 24), dtype='int'), ha="center", va="top", fontsize=10)
plt.ylabel('Link level')
plt.axis([0, 24, 0, levels])
plt.title(nnames[node] + ' ' + direction + ' ' + color)
plt.savefig(figPath + '/hourly/' + str(scheme) + '/' + str(node) + '_' + color + '_' + direction + '.pdf', bbox_inches='tight')
plt.close()
hourSums = hourSums / np.sum(hourSums, axis=1)[:, None]
totalNormed += hourSums
plt.figure(figsize=(9, 3))
ax = plt.subplot()
plt.pcolormesh(hourSums, cmap=cmap)
plt.colorbar().set_label(label=r'$U_n^{(l)}$', size=11)
ax.set_yticks(np.linspace(.5, levels - .5, levels))
ax.set_yticklabels(range(1, levels + 1))
ax.yaxis.set_tick_params(width=0)
ax.xaxis.set_tick_params(width=0)
ax.set_xticks(np.linspace(.5, 23.5, 24))
ax.set_xticklabels(np.array(np.linspace(1, 24, 24), dtype='int'), ha="center", va="top", fontsize=10)
plt.ylabel('Link level')
plt.axis([0, 24, 0, levels])
plt.title(nnames[node] + ' ' + direction + ' ' + color)
plt.savefig(figPath + '/hourly/' + str(scheme) + '/normed/' + str(node) + '_' + color + '_' + direction + '.pdf', bbox_inches='tight')
plt.close()
# Plot average hourly usage
totalHour /= nodes
plt.figure(figsize=(9, 3))
ax = plt.subplot()
plt.pcolormesh(totalHour, cmap=cmap)
plt.colorbar().set_label(label=r'$U_n^{(l)}$', size=11)
ax.set_yticks(np.linspace(.5, levels - .5, levels))
ax.set_yticklabels(range(1, levels + 1))
ax.yaxis.set_tick_params(width=0)
ax.xaxis.set_tick_params(width=0)
ax.set_xticks(np.linspace(.5, 23.5, 24))
ax.set_xticklabels(np.array(np.linspace(1, 24, 24), dtype='int'), ha="center", va="top", fontsize=10)
plt.ylabel('Link level')
plt.axis([0, 24, 0, levels])
plt.savefig(figPath + '/hourly/' + str(scheme) + '/total_' + color + '_' + direction + '.pdf', bbox_inches='tight')
plt.close()
totalNormed /= nodes
plt.figure(figsize=(9, 3))
ax = plt.subplot()
plt.pcolormesh(totalNormed, cmap=cmap)
plt.colorbar().set_label(label=r'$U_n^{(l)}$', size=11)
ax.set_yticks(np.linspace(.5, levels - .5, levels))
ax.set_yticklabels(range(1, levels + 1))
ax.yaxis.set_tick_params(width=0)
ax.xaxis.set_tick_params(width=0)
ax.set_xticks(np.linspace(.5, 23.5, 24))
ax.set_xticklabels(np.array(np.linspace(1, 24, 24), dtype='int'), ha="center", va="top", fontsize=10)
plt.ylabel('Link level')
plt.axis([0, 24, 0, levels])
plt.savefig(figPath + '/hourly/' + str(scheme) + '/normed/total_' + color + '_' + direction + '.pdf', bbox_inches='tight')
plt.close()
linestyle='-',
color='navy',
label='Exp. - $\\phi_0 = 0.592$')
plt.plot(time_sim_dila_0,
vel_sim_dila_0,
marker='|',
markersize=5,
linestyle='-',
linewidth=1.2,
color='navy',
label='SedFoam - $\\phi_0 = 0.592$')
plt.ylabel('$\\frac{v^s}{\\sqrt{gd}}$ [$-$]', fontsize=18)
plt.xlabel('$\\frac{t}{\\sqrt{d/g}}$ [$-$]', fontsize=18)
plt.axis([-1000, 160000, -0.00005, 0.03001])
plt.grid()
plt.tight_layout()
plt.savefig('Figures/velocityPlot2D_phi0592' + '.png', dpi=200)
#time - pressure plot including the experimental data (Pailha et al 2008) and the numerical results
plt.figure()
plt.plot(time_p_562,
pressure_562,
marker='o',
markersize=0,
linestyle='--',
color='lightpink',
label='Exp. - $\\phi_0 = 0.562$')
plt.plot(time_p_568,
# Build the meta
M = nx.Graph()
pos = {}
pos[1] = [0,0]
pos[2] = [0,-dy]
pos[3] = [-dx,-2*dy]
pos[4] = [dx,-2*dy]
pos[5] = [-dx,-3*dy]
pos[6] = [dx,-3*dy]
M.add_edges_from([ (1,2),(2,3),(2,4),(4,6),(3,6),(3,5) ])
nx.draw_networkx_edges(M,pos,color='r',style='--',width=3,zorder=-10,alpha=.5)
nx.draw_networkx_nodes(M,pos,width=6,node_color='white',
with_labels=False,node_size=4500,alpha=.3,zorder=10)
###################
for g,pos in zip(G,POS):
pos_map = dict(zip(range(1,5),pos))
nx.draw_networkx_nodes(g,pos_map,zorder=20,**dargs)
nx.draw_networkx_edges(g,pos_map,zorder=20,**dargs)
########
plt.axis('off')
plt.axis('equal')
plt.savefig("figures/example_4.png",bbox_inches='tight',bbox_inches=0)
plt.show()
#print k4
# Defines generator model
generator_model = tf.keras.Model([z_gen, label], valid)
generator_model.compile(loss=wasserstein_loss, optimizer=optimizer)
print('finished building networks')
# plot some real samples
# plot a couple of samples
plt.figure(figsize=(25, 25))
n_plot = 30
[X_real, cond_real] = next(generate_real_samples(n_plot))
for i in range(n_plot):
plt.subplot(n_plot, 25, i * 25 + 1)
plt.imshow(cond_real[i, :, :].squeeze(),
cmap=plt.cm.gist_earth_r,
norm=LogNorm(vmin=0.01, vmax=1))
plt.axis('off')
for j in range(1, 24):
plt.subplot(n_plot, 25, i * 25 + j + 1)
plt.imshow(X_real[i, j, :, :].squeeze(),
vmin=0,
vmax=1,
cmap=plt.cm.hot_r)
plt.axis('off')
plt.colorbar()
plt.savefig(f'{plotdir}/real_samples.{plot_format}')
hist = {'d_loss': [], 'g_loss': []}
print(f'start training on {n_samples} samples')
def train(n_epochs, _batch_size, start_epoch=0):
def showImage(self):
self.imgObj = imshow(self.img)
plt.axis('off')
show()
def plot_variable(u,
name,
direc,
cmap='gist_yarg',
scale='lin',
numLvls=12,
umin=None,
umax=None,
tp=False,
tpAlpha=0.5,
show=True,
hide_ax_tick_labels=False,
label_axes=True,
title='',
use_colorbar=True,
hide_axis=False,
colorbar_loc='right'):
"""
"""
mesh = u.function_space().mesh()
v = u.compute_vertex_values(mesh)
x = mesh.coordinates()[:, 0]
y = mesh.coordinates()[:, 1]
t = mesh.cells()
d = os.path.dirname(direc)
if not os.path.exists(d):
os.makedirs(d)
if umin != None:
vmin = umin
else:
vmin = v.min()
if umax != None:
vmax = umax
else:
vmax = v.max()
# countour levels :
if scale == 'log':
v[v < vmin] = vmin + 1e-12
v[v > vmax] = vmax - 1e-12
from matplotlib.ticker import LogFormatter
levels = np.logspace(np.log10(vmin), np.log10(vmax), numLvls)
formatter = LogFormatter(10, labelOnlyBase=False)
norm = colors.LogNorm()
elif scale == 'lin':
v[v < vmin] = vmin + 1e-12
v[v > vmax] = vmax - 1e-12
from matplotlib.ticker import ScalarFormatter
levels = np.linspace(vmin, vmax, numLvls)
formatter = ScalarFormatter()
norm = None
elif scale == 'bool':
from matplotlib.ticker import ScalarFormatter
levels = [0, 1, 2]
formatter = ScalarFormatter()
norm = None
fig = plt.figure(figsize=(8, 7))
ax = fig.add_subplot(111)
c = ax.tricontourf(x,
y,
t,
v,
levels=levels,
norm=norm,
cmap=pl.get_cmap(cmap))
plt.axis('equal')
if tp == True:
p = ax.triplot(x, y, t, 'k-', lw=0.25, alpha=tpAlpha)
ax.set_xlim([x.min(), x.max()])
ax.set_ylim([y.min(), y.max()])
if label_axes:
ax.set_xlabel(r'$x$')
ax.set_ylabel(r'$y$')
if hide_ax_tick_labels:
ax.set_xticklabels([])
ax.set_yticklabels([])
if hide_axis:
plt.axis('off')
# include colorbar :
if scale != 'bool' and use_colorbar:
divider = make_axes_locatable(plt.gca())
cax = divider.append_axes(colorbar_loc, "5%", pad="3%")
cbar = plt.colorbar(c, cax=cax, format=formatter, ticks=levels)
pl.mpl.rcParams['axes.titlesize'] = 'small'
tit = plt.title(title)
plt.tight_layout()
d = os.path.dirname(direc)
if not os.path.exists(d):
os.makedirs(d)
plt.savefig(direc + name + '.pdf')
if show:
plt.show()
plt.close(fig)
def train(n_epochs, _batch_size, start_epoch=0):
"""
train with fixed batch_size for given epochs
make some example plots and save model after each epoch
"""
global batch_size
batch_size = _batch_size
# create a dataqueue with the keras facilities. this allows
# to prepare the data in parallel to the training
sample_dataqueue = GeneratorEnqueuer(generate_real_samples(batch_size),
use_multiprocessing=True)
sample_dataqueue.start(workers=2, max_queue_size=10)
sample_gen = sample_dataqueue.get()
# targets for loss function
gan_sample_dataqueue = GeneratorEnqueuer(
generate_latent_points_as_generator(batch_size),
use_multiprocessing=True)
gan_sample_dataqueue.start(workers=2, max_queue_size=10)
gan_sample_gen = gan_sample_dataqueue.get()
# targets for loss function
valid = -np.ones((batch_size, 1))
fake = np.ones((batch_size, 1))
dummy = np.zeros((batch_size, 1)) # Dummy gt for gradient penalty
bat_per_epo = int(n_samples / batch_size)
# we need to call the discriminator once in order
# to initialize the input shapes
[X_real, cond_real] = next(sample_gen)
latent = np.random.normal(size=(batch_size, latent_dim))
critic_model.predict([X_real, cond_real, latent])
for i in trange(n_epochs):
epoch = 1 + i + start_epoch
# enumerate batches over the training set
for j in trange(bat_per_epo):
for _ in range(n_disc):
# fetch a batch from the queue
[X_real, cond_real] = next(sample_gen)
latent = np.random.normal(size=(batch_size, latent_dim))
d_loss = critic_model.train_on_batch(
[X_real, cond_real, latent], [valid, fake, dummy])
# we get for losses back here. average, valid, fake, and gradient_penalty
# we want the average of valid and fake
d_loss = np.mean([d_loss[1], d_loss[2]])
# train generator
# prepare points in latent space as input for the generator
[latent, cond] = next(gan_sample_gen)
# update the generator via the discriminator's error
g_loss = generator_model.train_on_batch([latent, cond], valid)
# summarize loss on this batch
print(f'{epoch}, {j + 1}/{bat_per_epo}, d_loss {d_loss}' + \
f' g:{g_loss} ') # , d_fake:{d_loss_fake} d_real:{d_loss_real}')
if np.isnan(g_loss) or np.isnan(d_loss):
raise ValueError('encountered nan in g_loss and/or d_loss')
hist['d_loss'].append(d_loss)
hist['g_loss'].append(g_loss)
# plot generated examples
plt.figure(figsize=(25, 25))
n_plot = 30
X_fake, cond_fake = generate_fake_samples(n_plot)
for iplot in range(n_plot):
plt.subplot(n_plot, 25, iplot * 25 + 1)
plt.imshow(cond_fake[iplot, :, :].squeeze(),
cmap=plt.cm.gist_earth_r,
norm=LogNorm(vmin=0.01, vmax=1))
plt.axis('off')
for jplot in range(1, 24):
plt.subplot(n_plot, 25, iplot * 25 + jplot + 1)
plt.imshow(X_fake[iplot, jplot, :, :].squeeze(),
vmin=0,
vmax=1,
cmap=plt.cm.hot_r)
plt.axis('off')
plt.colorbar()
plt.suptitle(f'epoch {epoch:04d}')
plt.savefig(
f'{plotdir}/fake_samples_{params}_{epoch:04d}_{j:06d}.{plot_format}'
)
# plot loss
plt.figure()
plt.plot(hist['d_loss'], label='d_loss')
plt.plot(hist['g_loss'], label='g_loss')
plt.ylabel('batch')
plt.legend()
plt.savefig(f'{plotdir}/training_loss_{params}.{plot_format}')
pd.DataFrame(hist).to_csv('hist.csv')
plt.close('all')
generator.save(f'{outdir}/gen_{params}_{epoch:04d}.h5')
critic.save(f'{outdir}/disc_{params}_{epoch:04d}.h5')
hx, hy = my_dict['history_x'], my_dict['history_y']
lines_shape = (18, 512)
# The initial points
lines_old_x = hx[0].reshape(lines_shape).copy()
lines_old_y = hy[0].reshape(lines_shape).copy()
# The final points
lines_new_x = hx[-1].reshape(lines_shape).copy()
lines_new_y = hy[-1].reshape(lines_shape).copy()
c = 'r'
fig = plt.figure()
plt.subplot(121)
for line_x, line_y in zip(lines_old_x, lines_old_y):
plt.plot(line_x, line_y, c)
plt.axis('scaled')
q = 100
plt.xlim(0 - q, 512 + q)
plt.ylim(0 - q, 512 + q)
plt.gca().invert_yaxis()
c = 'b'
plt.subplot(122)
for line_x, line_y in zip(lines_new_x, lines_new_y):
plt.plot(line_x, line_y, c)
plt.axis('scaled')
q = 500
plt.xlim(0 - q, 512 + q)
plt.ylim(0 - q, 512 + q)
plt.gca().invert_yaxis()
pylab.show()
def example(tess='I',base=[2,2,2],nLevels=1,
zero_v_across_bdry=[True]*3,
vol_preserve=False,
nRows=100, nCols=100,nSlices=100,
use_mayavi=False,
eval_v=False,
eval_cell_idx=False):
tw = TransformWrapper(nRows=nRows,
nCols=nCols,
nSlices=nSlices,
nLevels=nLevels,
base=base,
zero_v_across_bdry=zero_v_across_bdry,
tess=tess,
valid_outside=False,
only_local=False,
vol_preserve=vol_preserve)
print_iterable(tw.ms.L_cpa_space)
print tw
# create some fake 3D image.
img = np.zeros((nCols,nRows,nSlices),dtype=np.float64)
# img[:]=np.random.random_integers(0,255,img.shape)
# Fill the image with the x coordinates as fake values
img[:]=tw.pts_src_dense.cpu[:,0].reshape(img.shape)
img0 = CpuGpuArray(img.copy().astype(np.float64))
img_wrapped_fwd= CpuGpuArray.zeros_like(img0)
img_wrapped_inv= CpuGpuArray.zeros_like(img0)
seed=0
np.random.seed(seed)
ms_Avees=tw.get_zeros_PA_all_levels()
ms_theta=tw.get_zeros_theta_all_levels()
if tess == 'II' :
for level in range(tw.ms.nLevels):
cpa_space = tw.ms.L_cpa_space[level]
Avees = ms_Avees[level]
# 1/0
if level==0:
tw.sample_gaussian(level,ms_Avees[level],ms_theta[level],mu=None)# zero mean
# ms_theta[level].fill(0)
# ms_theta[level][-4]=10
cpa_space.theta2Avees(theta=ms_theta[level],Avees=Avees)
else:
tw.sample_from_the_ms_prior_coarse2fine_one_level(ms_Avees,ms_theta,
level_fine=level)
else:
# For tess='I' in 3D, I have yet to implement the coarse-to-fine sampling.
for level in range(tw.ms.nLevels):
cpa_space = tw.ms.L_cpa_space[level]
velTess = cpa_space.zeros_velTess()
ms_Avees[level].fill(0)
Avees = ms_Avees[level]
tw.sample_gaussian_velTess(level,Avees,velTess,mu=None)
print 'img shape:',img0.shape
# You don't have use these. You can use any 2d array
# that has 3 columns (regardless of the number of rows).
pts_src = tw.pts_src_dense
pts_src=CpuGpuArray(pts_src.cpu[::1].copy())
# Create a buffer for the output
pts_fwd = CpuGpuArray.zeros_like(pts_src)
pts_inv = CpuGpuArray.zeros_like(pts_src)
for level in range(tw.ms.nLevels):
tw.update_pat_from_Avees(ms_Avees[level],level)
if eval_v:
# Evaluating the velocity field.
# You don't have to do it in unless you want to visualize v.
# (when evaluting the treansformation, v will be internally
# evaluated anyway -- but its result won't be stored)
tw.calc_v(level=level)
print 'level',level
print
print 'number of points:',len(pts_src)
print 'number of cells:',tw.ms.L_cpa_space[level].nC
# optional, if you want to time it
timer_gpu_T_fwd = GpuTimer()
# Simply calling
# tic = time.clock()
# and then
# tic = time.clock()
# won't work.
# In fact, most likely you will get that toc-tic is zero.
# You need to use the GpuTimer object. When you do that,
# one side effect is that suddenly the toc-tic from above will
# give you a more realistic result.
tic = time.clock()
timer_gpu_T_fwd.tic()
tw.calc_T_fwd(pts_src,pts_fwd,level=level)
timer_gpu_T_fwd.toc()
toc = time.clock()
print 'Time, in sec, for computing T_fwd:'
print timer_gpu_T_fwd.secs
print toc-tic # likely to be 0, unless you also used the GpuTimer.
# You can also time the inv of course. Results will be similar.
tw.calc_T_inv(pts_src,pts_inv,level=level)
if eval_cell_idx:
# cell_idx is computed here just for display.
cell_idx = CpuGpuArray.zeros(len(pts_src),dtype=np.int32)
tw.calc_cell_idx(pts_src,cell_idx,level)
tw.remap_fwd(pts_inv,img0,img_wrapped_fwd)
tw.remap_inv(pts_fwd,img0,img_wrapped_inv)
# For display purposes, do gpu2cpu transfer
print "For display purposes, do gpu2cpu transfer"
if eval_cell_idx:
cell_idx.gpu2cpu()
if eval_v:
tw.v_dense.gpu2cpu()
pts_fwd.gpu2cpu()
pts_inv.gpu2cpu()
img_wrapped_fwd.gpu2cpu()
img_wrapped_inv.gpu2cpu()
if use_mayavi:
ds=1 # downsampling factor
i= 17
pts_src_grid = pts_src.cpu.reshape(tw.nRows,tw.nCols,-1,3)
pts_src_ds=pts_src_grid[::ds,::ds,i].reshape(-1,3)
pts_fwd_grid = pts_fwd.cpu.reshape(tw.nRows,tw.nCols,-1,3)
pts_fwd_ds=pts_fwd_grid[::ds,::ds,i].reshape(-1,3)
pts_inv_grid = pts_inv.cpu.reshape(tw.nRows,tw.nCols,-1,3)
pts_inv_ds=pts_inv_grid[::ds,::ds,i].reshape(-1,3)
from of.my_mayavi import *
mayavi_mlab_close_all()
mayavi_mlab_figure_bgwhite('src')
x,y,z=pts_src_ds.T
mayavi_mlab_plot3d(x,y,z)
mayavi_mlab_figure_bgwhite('fwd')
x,y,z=pts_fwd_ds.T
mayavi_mlab_plot3d(x,y,z)
figsize = (12,12)
plt.figure(figsize=figsize)
i= 17 # some slice
plt.subplot(131)
plt.imshow(img0.cpu[:,:,i].astype(np.uint8),interpolation="Nearest")
plt.title('slice from img')
plt.subplot(132)
plt.imshow(img_wrapped_fwd.cpu[:,:,i].astype(np.uint8),interpolation="Nearest")
plt.axis('off')
plt.title('slice from fwd(img)')
plt.subplot(133)
plt.imshow(img_wrapped_inv.cpu[:,:,i].astype(np.uint8),interpolation="Nearest")
plt.axis('off')
plt.title('slice from inv(img)')
if 0: # debug
cpa_space=tw.ms.L_cpa_space[level]
if eval_v:
vx=tw.v_dense.cpu[:,0].reshape(cpa_space.x_dense_grid_img.shape[1:])
vy=tw.v_dense.cpu[:,1].reshape(cpa_space.x_dense_grid_img.shape[1:])
vz=tw.v_dense.cpu[:,2].reshape(cpa_space.x_dense_grid_img.shape[1:])
plt.figure()
plt.imshow(vz[:,:,17],interpolation="Nearest");plt.colorbar()
plt.title('vz in some slice')
return tw
# In[16]:
log_returns.std() * math.sqrt(M)
# In[17]:
plt.figure(figsize=(10, 6))
plt.hist(log_returns.flatten(),
bins=70,
normed=True,
label='frequency',
color='b')
plt.xlabel('log_return')
plt.ylabel('frequency')
x = np.linspace(plt.axis()[0], plt.axis()[1])
plt.plot(x,
scs.norm.pdf(x, loc=r / M, scale=sigma / np.sqrt(M)),
'r',
lw=2.0,
label='pdf')
plt.legend()
# In[18]:
sm.qqplot(log_returns.flatten()[::500], line='s')
plt.xlabel('Theoretical Quantiles')
plt.ylabel('Sample Quantiles')
# In[19]:
plt.title('Easy as 1,2,3') # 添加subplot 211 的标题
'==========================================='
mu, sigma = 100, 15
x = mu + sigma * np.random.randn(10000)
# 数据的直方图
n, bins, patches = plt.hist(x, 50, normed=1, facecolor='g', alpha=0.75)
plt.xlabel('Smarts')
plt.ylabel('Probability')
# 添加标题
plt.title('Histogram of IQ')
# 添加文字
plt.text(60, .025, r'$\mu=100,\ \sigma=15$')
plt.axis([40, 160, 0, 0.03])
plt.grid(True)
plt.show()
'==========================================='
ax = plt.subplot(111)
t = np.arange(0.0, 5.0, 0.01)
s = np.cos(2 * np.pi * t)
line, = plt.plot(t, s, lw=2)
plt.annotate(
'local max',
xy=(2, 1),
xytext=(3, 1.5),
