def csplot(series, *args, **kwargs):
"""
Plots the series to the current :class:`ClimateSeriesPlot` subplot.
If the current plot is not a :class:`ClimateSeriesPlot`,
a new :class:`ClimateFigure` is created.
"""
# allow callers to override the hold state by passing hold=True|False
b = pyplot.ishold()
h = kwargs.pop('hold', None)
if h is not None:
pyplot.hold(h)
# Get the current figure, or create one
figManager = _pylab_helpers.Gcf.get_active()
if figManager is not None:
fig = figManager.canvas.figure
if not isinstance(fig, ClimateFigure):
fig = csfigure(series=series)
else:
fig = csfigure(series=series)
# Get the current axe, or create one
sub = fig._axstack()
if sub is None:
sub = fig.add_csplot(111, series=series, **kwargs)
try:
ret = sub.csplot(series, *args, **kwargs)
pyplot.draw_if_interactive()
except:
pyplot.hold(b)
raise
pyplot.hold(b)
return ret
def plot_mean_std_area(x, y, std, ax_handle=None, fignum=None):
'''
Plot a given x-y data, with a transparent area for its standard deviation
If ax_handle is given, plots on this figure.
'''
if ax_handle is None:
f = plt.figure(fignum)
ax_handle = f.add_subplot(111)
ishold = plt.ishold()
ax = ax_handle.plot(x, y)
current_color = ax[-1].get_c()
plt.hold(True)
if np.any(std > 1e-6):
ax_handle.fill_between(x, y-std, y+std, facecolor=current_color, alpha=0.4,
label='1 sigma range')
ax_handle.get_figure().canvas.draw()
plt.hold(ishold)
return ax_handle
def data_mouse():
"""Simple by-hand data generation using the GUI
Opens a matplotlib plot window, and allows the user to specify points with the mouse.
Each button is its own class (1,2,3); close the window when done creating data.
Returns:
X (arr): Mx2 array of data locations
Y (arr): Mx1 array of labels (buttons)
"""
import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.add_subplot(111, xlim=(-1,2), ylim=(-1,2))
X = np.zeros( (0,2) )
Y = np.zeros( (0,) )
col = ['bs','gx','ro']
def on_click(event):
X.resize( (X.shape[0]+1,X.shape[1]) )
X[-1,:] = [event.xdata,event.ydata]
Y.resize( (Y.shape[0]+1,) )
Y[-1] = event.button
ax.plot( event.xdata, event.ydata, col[event.button-1])
fig.canvas.draw()
fig.canvas.mpl_connect('button_press_event',on_click)
inter=plt.isinteractive(); hld=plt.ishold();
plt.ioff(); plt.hold(True); plt.show();
if inter: plt.ion();
if not hld: plt.hold(False);
return X,Y
def csplot(series, *args, **kwargs):
"""
Plots the series to the current :class:`ClimateSeriesPlot` subplot.
If the current plot is not a :class:`ClimateSeriesPlot`,
a new :class:`ClimateFigure` is created.
"""
# allow callers to override the hold state by passing hold=True|False
b = pyplot.ishold()
h = kwargs.pop('hold', None)
if h is not None:
pyplot.hold(h)
# Get the current figure, or create one
figManager = _pylab_helpers.Gcf.get_active()
if figManager is not None :
fig = figManager.canvas.figure
if not isinstance(fig, ClimateFigure):
fig = csfigure(series=series)
else:
fig = csfigure(series=series)
# Get the current axe, or create one
sub = fig._axstack()
if sub is None:
sub = fig.add_csplot(111, series=series, **kwargs)
try:
ret = sub.csplot(series, *args, **kwargs)
pyplot.draw_if_interactive()
except:
pyplot.hold(b)
raise
pyplot.hold(b)
return ret
def _Draw(Gtraits, G, pos=None, ax=None, hold=None, **kwds):
if ax is None:
cf = plt.gcf()
else:
cf = ax.get_figure()
cf.set_facecolor('w')
if ax is None:
if cf._axstack() is None:
ax = cf.add_axes((0, 0, 1, 1))
else:
ax = cf.gca()
b = plt.ishold()
h = kwds.pop('hold', None)
if h is not None:
plt.hold(h)
try:
plt.hold(h)
_DrawGraph(Gtraits, G, pos=pos, ax=ax, **kwds)
ax.set_axis_off()
plt.draw_if_interactive()
except:
plt.hold(b)
raise
plt.hold(b)
return cf
def projection(embeddings, token_list):
for k in range(6):
embeddings=np.concatenate((embeddings, embeddings), axis=0)
proj = PCA(embeddings)
PCA_proj=proj.Y
print PCA_proj.shape
#plotting words within the 2D space of the two principal components:
list=token_list[0]
for n in range(maxlen):
plt.plot(PCA_proj[n][0]+1,PCA_proj[n][1], 'w.')
plt.annotate(list[n], xy=(PCA_proj[n][0],PCA_proj[n][1]), xytext=(PCA_proj[n][0],PCA_proj[n][1]))
plt.show()
plt.ishold()
return
def projection(embeddings, token_list):
for k in range(6):
embeddings = np.concatenate((embeddings, embeddings), axis=0)
proj = PCA(embeddings)
PCA_proj = proj.Y
print PCA_proj.shape
#plotting words within the 2D space of the two principal components:
list = token_list[0]
for n in range(maxlen):
plt.plot(PCA_proj[n][0] + 1, PCA_proj[n][1], 'w.')
plt.annotate(list[n],
xy=(PCA_proj[n][0], PCA_proj[n][1]),
xytext=(PCA_proj[n][0], PCA_proj[n][1]))
plt.show()
plt.ishold()
return
def recoil_params(self, plot=False):
'''
Calculate recoil parameters, SFD, iSFD, eSFD,... add them to instance
as attributes
'''
result = copy.copy(self)
# Split recoil into return loops as used by hystools.recoil
Hsplit, Msplit = [], []
for h, m in zip(self.H, self.M):
try:
[h1, h2], [m1, m2] = hys.split(h, m)
if len(h2) > 0.8*len(h1):
# don't append loops that haven't returned at least 80%
# Cut out first 10 points, where drift is happening
Hsplit.append(h2[10:])
Msplit.append(m2[10:])
except:
# split failed, probably incomplete loop.
pass
rec_params = hys.recoil(Hsplit, Msplit, startdef=1)
paramstosave = ['SFD', 'iSFD', 'eSFD', 'H_zminor', 'M_zminor']
# map to these attribute names
maptoattrib = ['SFD', 'iSFD', 'eSFD', 'H_zminor', 'M_zminor']
for p, m in zip(paramstosave, maptoattrib):
setattr(result, m, rec_params[p])
if self.verbose:
paramstoprint = ['SFD', 'iSFD', 'eSFD']
unitstoprint = ['Oe', 'Oe', 'Oe']
for param, unit in zip(paramstoprint, unitstoprint):
print(param.ljust(4) + ': {:.2f} {}'.format(rec_params[param], unit))
if plot:
# make summary plot
#plt.figure()
ishold = plt.ishold()
plt.plot(self.H[0], self.M[0])
plt.hold(True)
for h, m in zip(Hsplit[1:], Msplit[1:]):
plt.plot(h, m)
plt.plot(rec_params['H_zminor'], rec_params['M_zminor'], color='black', linewidth=3)
plt.scatter(*zip(*rec_params['plotpts']), c='g', s=30, zorder=3)
plt.grid(True)
plt.xlabel('Field (Oe)')
plt.ylabel('M (uemu)')
plt.title(os.path.split(self.filepath)[1])
plt.hold(ishold)
return result
def _plotonehist2(x,y,parx,pary,smooth=False,colormap=True,ranges={},labels={},bins=50,levels=3,weights=None,
color='k',linewidth=1):
hold = P.ishold()
hrange = [ranges[parx] if parx in ranges else [N.min(x),N.max(x)],
ranges[pary] if pary in ranges else [N.min(y),N.max(y)]]
[h,xs,ys] = N.histogram2d(x,y,bins=bins,normed=True,range=hrange,weights=weights)
if colormap:
P.contourf(0.5*(xs[1:]+xs[:-1]),0.5*(ys[1:]+ys[:-1]),h.T,cmap=P.get_cmap('YlOrBr')); P.hold(True)
H,tmp1,tmp2 = N.histogram2d(x,y,bins=bins,range=hrange,weights=weights)
if smooth:
# only need scipy if we're smoothing
import scipy.ndimage.filters as SNF
H = SNF.gaussian_filter(H,sigma=1.5 if smooth is True else smooth)
if weights is None:
H = H / len(x)
else:
H = H / N.sum(H) # I think this is right...
Hflat = -N.sort(-H.flatten()) # sort highest to lowest
cumprob = N.cumsum(Hflat) # sum cumulative probability
levels = [N.interp(level,cumprob,Hflat) for level in [0.6826,0.9547,0.9973][:levels]]
xs = N.linspace(hrange[0][0],hrange[0][1],bins)
ys = N.linspace(hrange[1][0],hrange[1][1],bins)
P.contour(xs,ys,H.T,levels,
colors=color,linestyles=['-','--','-.'][:len(levels)],linewidths=linewidth)
P.hold(hold)
if parx in ranges:
P.xlim(ranges[parx])
if pary in ranges:
P.ylim(ranges[pary])
P.xlabel(labels[parx] if parx in labels else parx)
P.ylabel(labels[pary] if pary in labels else pary)
P.locator_params(axis='both',nbins=6)
P.minorticks_on()
fx = P.ScalarFormatter(useOffset=True,useMathText=True)
fx.set_powerlimits((-3,4)); fx.set_scientific(True)
fy = P.ScalarFormatter(useOffset=True,useMathText=True)
fy.set_powerlimits((-3,4)); fy.set_scientific(True)
P.gca().xaxis.set_major_formatter(fx)
P.gca().yaxis.set_major_formatter(fy)
def draw_grid(corners,nRows=3,nCols=2):
'''
Draw a grid of nRows and nCols starting at the coordinates specified in 'corners'.
'''
(xvals,yvals) = define_grid(corners,nRows,nCols)
holdStatus = plt.ishold()
plt.hold(True)
plt.autoscale(False)
for yval in yvals:
plt.plot(xvals[[0,-1]],[yval,yval],color=GRIDCOLOR)
for xval in xvals:
plt.plot([xval,xval],yvals[[0,-1]],color=GRIDCOLOR)
plt.hold(holdStatus)
plt.draw()
def draw_grid(corners,nRows=3,nCols=2):
'''
Draw a grid of nRows and nCols starting at the coordinates specified in 'corners'.
'''
(xvals,yvals) = define_grid(corners,nRows,nCols)
holdStatus = plt.ishold()
plt.hold(True)
plt.autoscale(False)
for yval in yvals:
plt.plot(xvals[[0,-1]],[yval,yval],color=GRIDCOLOR)
for xval in xvals:
plt.plot([xval,xval],yvals[[0,-1]],color=GRIDCOLOR)
plt.hold(holdStatus)
plt.draw()
def plot(self, loopnum='all'):
''' plot loops'''
loopind = self._loopind(loopnum)
#plt.figure()
ishold = plt.ishold()
lines = []
for i,(H,M) in enumerate(zip(self.H, self.M)):
if i in loopind:
# label plots by everything before '--' in filename
label = os.path.split(self.filepath)[1].split('--')[0] + ' ({})'.format(i+1)
#label = os.path.split(self.filepath)[1] + str(i+1)
line = plt.plot(H, M, label=label)
lines.extend(line)
plt.hold(True)
plt.grid(True)
plt.title(os.path.split(self.filepath)[1])
plt.xlabel('Field (Oe)')
plt.ylabel('VSM signal ($\mu$ emu)')
plt.hold(ishold)
return lines
def plot_mean_std_area(x, y, std, ax_handle=None, fignum=None, linewidth=1, fmt='-', markersize=1, color=None, xlabel=None, ylabel=None, label='', title=None):
'''
Plot a given x-y data, with a transparent area for its standard deviation
If ax_handle is given, plots on this figure.
'''
if ax_handle is None:
f = plt.figure(fignum)
ax_handle = f.add_subplot(111)
ishold = plt.ishold()
if color is not None:
ax = ax_handle.plot(x, y, fmt, linewidth=linewidth, markersize=markersize, color=color, label=label)
else:
ax = ax_handle.plot(x, y, fmt, linewidth=linewidth, markersize=markersize, label=label)
current_color = ax[-1].get_c()
plt.hold(True)
if std is not None and np.any(std > 1e-6):
ax_handle.fill_between(x, y-std, y+std, facecolor=current_color, alpha=0.4)
if xlabel is not None:
ax_handle.set_xlabel(xlabel)
if ylabel is not None:
ax_handle.set_ylabel(ylabel)
if title is not None:
ax_handle.set_title(title)
ax_handle.get_figure().canvas.draw()
plt.hold(ishold)
return ax_handle
def nplot(filter = '', n=10, loopnum='all', legend=True):
''' Plot from n files at once '''
washeld = plt.ishold()
if not washeld:
# clear current axis if not hold
plt.cla()
#fig, ax = plt.subplots()
lines = []
for fn in reversed(nlatest(filter, n)):
# plot oldest first
line = ppms(fn).cplot(loopnum)
lines.extend(line)
plt.hold(True)
plt.hold(False)
if legend:
plt.legend(loc='best')
# leave plot in previous hold state
if not washeld:
plt.hold(False)
return lines
def main():
m = 1
n = 2
x = np.arange(0, 10, 0.1)
y = x**2 / 100
plt.ioff() #Activar modo interactivo
plt.figure('Figura1')
plt.figure('Figura2')
a = np.random.rand(100)
b = np.random.rand(100)
plt.figure('Figura1')
plt.subplot(m, n, 1)
y1 = cvector(1, 5, 0.1)
print y1
plt.plot(y1)
plt.subplot(m, n, 2)
y2 = cvector(5, 1, -0.1)
plt.plot(y2)
print y2
plt.figure('Figura2')
plt.plot(a, b)
plt.scatter(x, y)
plt.figure('Figura3')
m = 2
n = 2
plt.subplot(m, n, 1)
y = cvector(1, 3, 0.1)
plt.plot(y)
plt.subplot(m, n, 2)
y = cvector(3, 1, -0.1)
plt.plot(y)
plt.subplot(2, 1, 2)
y1 = np.array(cvector(0, 2, 0.1))
y2 = np.array(cvector(2, 0, -0.1))
y = np.concatenate((y1, y2), axis=0)
#y=np.array([0,1,2,2,1,0])
plt.plot(y)
fig = plt.figure(frameon=True,
edgecolor='b',
dpi=100,
figsize=(12, 12),
facecolor='g')
fig.canvas.set_window_title('Figura 5')
#print id(fig)
#fig.figure('Figura4')
x = np.array(cvector(0, 10, 0.1))
y = np.array(cvector(0, 10, 0.1))
l = len(x)
print x
for i in range(0, l):
if x[i] > 5:
y[i] = 2
else:
y[i] = 0
plt.plot(x, y)
# plt.plot(np.random.rand(10))
# plt.plot(np.random.rand(10))
#plt.clf()
plt.show()
print plt.isinteractive()
print plt.ishold()
def draw(g, pos=None, ax=None, hold=None, ax_size=(0,0,1,1), **kwds):
"""Draw the graph g with Matplotlib.
Draw the graph as a simple representation with no node
labels or edge labels and using the full Matplotlib figure area
and no axis labels by default. See draw_mtg() for more
full-featured drawing that allows title, axis labels etc.
Parameters
----------
g : graph
A MTG graph
pos : dictionary, optional
A dictionary with nodes as keys and positions as values.
If not specified a spring layout positioning will be computed.
See mtg.layout for functions that compute node positions.
ax : Matplotlib Axes object, optional
Draw the graph in specified Matplotlib axes.
hold : bool, optional
Set the Matplotlib hold state. If True subsequent draw
commands will be added to the current axes.
**kwds : optional keywords
See draw.draw_mtg() for a description of optional keywords.
Examples
--------
>>> g = om.random_mtg()
>>> draw.draw(g)
>>> draw.draw(g,pos=om.spring_layout(G)) # use spring layout
See Also
--------
draw_mtg()
draw_mtg_vertices()
draw_mtg_edges()
draw_mtg_labels()
draw_mtg_edge_labels()
Notes
-----
This function has the same name as pylab.draw and pyplot.draw
so beware when using
>>> from openalea.mtg.draw import *
since you might overwrite the pylab.draw function.
With pyplot use
>>> import matplotlib.pyplot as plt
>>> import openalea.mtg as om
>>> g=om.random_mtg()
>>> om.draw(g) # mtg draw()
>>> plt.draw() # pyplot draw()
Also see the openalea.mtg drawing examples at
openalea gallery.
"""
try:
import matplotlib.pyplot as plt
except ImportError:
raise ImportError("Matplotlib required for draw()")
except RuntimeError:
print("Matplotlib unable to open display")
raise
if ax is None:
cf = plt.gcf()
else:
cf = ax.get_figure()
cf.set_facecolor('w')
if ax is None:
if cf._axstack() is None:
ax=cf.add_axes(ax_size)
else:
ax=cf.gca()
# allow callers to override the hold state by passing hold=True|False
b = plt.ishold()
h = kwds.pop('hold', None)
if h is not None:
plt.hold(h)
try:
draw_mtg(g, pos=pos,ax=ax,**kwds)
ax.set_axis_off()
plt.draw_if_interactive()
except:
plt.hold(b)
raise
plt.hold(b)
return
# definimos las proyecciones en los planos X-Y , X-Z , Y-Z
# ########################################################
plt.figure("figura 1")
plt.title("proyeccion en los planos")
plt.subplot(321)
plt.plot(datos_x, datos_y)
plt.xlabel("valores de x")
plt.ylabel("valores de y")
plt.subplot(324)
plt.plot(datos_x, datos_z)
plt.xlabel("valores de x")
plt.ylabel("valores de z")
plt.subplot(325)
plt.plot(datos_y, datos_z)
plt.xlabel("valores de y")
plt.ylabel("valores de z")
# #####################################################
# definimos las proyecciones de los datos en el tiempo
# #####################################################
plt.ishold()
plt.figure("figura 2")
plt.plot(datos_t, datos_x, label="x")
plt.plot(datos_t, datos_y, label="y")
plt.plot(datos_t, datos_z, label="z")
plt.xlabel("valores de t")
plt.ylabel("valores de x-y-z")
plt.title("evolucion temporal")
plt.legend()
plt.show()
def draw(G, pos=None, ax=None, hold=None, **kwds):
"""Draw the graph G with Matplotlib.
Draw the graph as a simple representation with no node
labels or edge labels and using the full Matplotlib figure area
and no axis labels by default. See draw_networkx() for more
full-featured drawing that allows title, axis labels etc.
Parameters
----------
G : graph
A networkx graph
pos : dictionary, optional
A dictionary with nodes as keys and positions as values.
If not specified a spring layout positioning will be computed.
See networkx.layout for functions that compute node positions.
ax : Matplotlib Axes object, optional
Draw the graph in specified Matplotlib axes.
hold : bool, optional
Set the Matplotlib hold state. If True subsequent draw
commands will be added to the current axes.
**kwds : optional keywords
See networkx.draw_networkx() for a description of optional keywords.
Examples
--------
>>> G=nx.dodecahedral_graph()
>>> nx.draw(G)
>>> nx.draw(G,pos=nx.spring_layout(G)) # use spring layout
See Also
--------
draw_networkx()
draw_networkx_nodes()
draw_networkx_edges()
draw_networkx_labels()
draw_networkx_edge_labels()
Notes
-----
This function has the same name as pylab.draw and pyplot.draw
so beware when using
>>> from networkx import *
since you might overwrite the pylab.draw function.
With pyplot use
>>> import matplotlib.pyplot as plt
>>> import networkx as nx
>>> G=nx.dodecahedral_graph()
>>> nx.draw(G) # networkx draw()
>>> plt.draw() # pyplot draw()
Also see the NetworkX drawing examples at
http://networkx.github.io/documentation/latest/gallery.html
"""
try:
import matplotlib.pyplot as plt
except ImportError:
raise ImportError("Matplotlib required for draw()")
except RuntimeError:
print("Matplotlib unable to open display")
raise
if ax is None:
cf = plt.gcf()
else:
cf = ax.get_figure()
cf.set_facecolor('w')
if ax is None:
if cf._axstack() is None:
ax = cf.add_axes((0, 0, 1, 1))
else:
ax = cf.gca()
if 'with_labels' not in kwds:
kwds['with_labels'] = 'labels' in kwds
b = plt.ishold()
# allow callers to override the hold state by passing hold=True|False
h = kwds.pop('hold', None)
if h is not None:
plt.hold(h)
try:
draw_networkx(G, pos=pos, ax=ax, **kwds)
ax.set_axis_off()
plt.draw_if_interactive()
except:
plt.hold(b)
raise
plt.hold(b)
return
def roc(res_paths):
paramsets = []
statsets = []
for res_path in res_paths:
f = open(res_path, 'r')
results = pickle.load(f)
f.close()
for paramset in results[0]:
paramsets.append(paramset)
for statset in results[1]:
statsets.append(statset)
fix_detection_times(paramsets, statsets)
"""
# Sort just to make sure (TODO: untested) TODO: This will come in handy when
# getting data from multiple files.
sorted_indices = [ i[0] for i in sorted(enumerate(paramsets),
key=lambda x:x[1]) ]
paramsets = sorted(paramsets)
stats = [ stats[sorted_indices[i]] for i in range(len(stats)) ]
"""
save_fig = False
plot = True
pnt = False
if plot:
plt.close('all')
plt.ion()
fig = plt.figure(figsize = (10,4.5))
plt.show()
if save_fig:
if not os.path.exists('fig'):
os.mkdir('fig')
# TODO: Get this from params somehow... though the relevant subset still has
# to be specified.
all_attrs = ['gamma', 'cmpr_window', 'threshold', 'w_smooth',
'detection_window_hrs', 'req_consec_detections']
const_attrs_allowed_values = { 'gamma': [0.1, 1, 10],
'cmpr_window': [10, 80, 115, 150],
#'cmpr_window': [80],
#'threshold': [1],
'threshold': [0.65, 1, 3],
'w_smooth': [10, 80, 115, 150],
'detection_window_hrs': [3, 5, 7, 9],
'req_consec_detections': [1, 3, 5] }
# Assuming parameter combinations are sorted, go through them sequentially and
# note the index of the parameter that changes. When that index changes, we
# make a new plot that show the variation of the variable at the new index.
for var_attr in all_attrs:
if save_fig:
if not os.path.exists(os.path.join('fig', var_attr)):
os.mkdir(os.path.join('fig', var_attr))
if plot:
print 'Press any key'
raw_input()
plt.figure(figsize = (10,4.5))
# plt.suptitle('Varying ' + attr_math_name[var_attr], size = 15)
plt.subplot(121)
plt.hold(False)
plt.subplot(122)
plt.hold(False)
if pnt:
print 'Varying', var_attr
delta_fprs = []
delta_tprs = []
# Mapping from paramset to percentage of tpr and fpr deltas above 0.
delta_rank = {}
# Mapping from paramset to a measure of how far up or down the ROC curve we are.
updown_rank = {}
# Partition deltas by where the ROC curve starts on the FPR/TPR plane.
deltas_partitioned = {}
deltas_partitioned['top'] = {}
deltas_partitioned['center'] = {}
deltas_partitioned['bottom'] = {}
# Partition fprs and tprs by where they are in the FPR/TPR plane
rates_partitioned = {}
rates_partitioned['top'] = {}
rates_partitioned['center'] = {}
rates_partitioned['bottom'] = {}
# Record the earliness relative to true onset
earliness = {}
earliness['top'] = {}
earliness['top']['fprs'] = []
earliness['top']['tprs'] = []
earliness['top']['earlies'] = []
earliness['top']['lates'] = []
earliness['top']['params'] = []
earliness['center'] = {}
earliness['center']['fprs'] = []
earliness['center']['tprs'] = []
earliness['center']['earlies'] = []
earliness['center']['lates'] = []
earliness['center']['params'] = []
earliness['bottom'] = {}
earliness['bottom']['fprs'] = []
earliness['bottom']['tprs'] = []
earliness['bottom']['earlies'] = []
earliness['bottom']['lates'] = []
earliness['bottom']['params'] = []
const_attrs = all_attrs[:]
const_attrs.remove(var_attr)
# Sort by variable parameter.
enum_sorted = sorted(enumerate(paramsets),
key = lambda x: x[1]._asdict()[var_attr])
# Sort by constant parameters.
enum_sorted = sorted(enum_sorted,
key = lambda x: [ x[1]._asdict()[attr] for attr in const_attrs ])
paramsets_sorted = [ elt[1] for elt in enum_sorted ]
indices_sorted = [ elt[0] for elt in enum_sorted ]
statsets_sorted = [ statsets[indices_sorted[i]] for i in range(len(statsets)) ]
# Initialize variables for each ROC curve. These will be reset when a new
# curve is ready to be drawn.
var_attr_count = 0
var_attr_values = []
mean_fprs = []
mean_tprs = []
std_fprs = []
std_tprs = []
all_fprs = []
all_tprs = []
all_earlies = []
all_lates = []
for psi in xrange(len(paramsets_sorted)):
# Take the difference between the numerical values.
curr_params = paramsets_sorted[psi]
const_attr_str = string.join(
[ attr + '=' + str(curr_params._asdict()[attr])
for attr in const_attrs ],
',')
if psi > 0:
prev_params = paramsets_sorted[psi - 1]
if pnt:
print psi
print prev_params
# print 'curr', curr_params
delta_params = [ curr_params[i] - prev_params[i]
for i in range(2,len(prev_params))
if type(curr_params[i]) is type(0) or \
type(curr_params[i]) is type(0.0) ]
if pnt:
print 'delta', delta_params
mod_indices = np.where(np.array(delta_params) != 0)
if len(mod_indices[0]) > 1:
#=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
# NEW ROC CURVE! PLOT RELEVANT THINGS FOR OLD ROC CURVE AND RESET
# VARIABLE IN PREPARATION FOR NEW ROC CURVE.
#=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
# Record values for plotting 2d histograms of ROC curve deltas for
# var_attr.
"""
delta_fprs.extend([ (mean_fprs[i] - mean_fprs[i-1]) / \
(var_attr_values[i] - var_attr_values[i-1])
for i in range(1, len(mean_fprs)) ])
delta_tprs.extend([ (mean_tprs[i] - mean_tprs[i-1]) / \
(var_attr_values[i] - var_attr_values[i-1])
for i in range(1, len(mean_tprs)) ])
"""
# Alternate method for computing delta_fprs and delta_tprs. Compute
# across all combinations of ROC for different trials.
# zip on so much data is expensive!
all_tprs_prod = list(itertools.product(*all_tprs))
all_fprs_prod = list(itertools.product(*all_fprs))
# Separate storage of deltas for prev params only (corresponding to
# the ROC curve we just finished looking at, and are about to
# analyze..
delta_fprs_prev_params = []
delta_tprs_prev_params = []
for combo_i in xrange(len(all_fprs_prod)):
fprs_combo = all_fprs_prod[combo_i]
tprs_combo = all_tprs_prod[combo_i]
# Don't include deltas that are "stuck" in the 0,0 or 1,1 corner.
"""
fprs_combo_not_stuck = [ fprs_combo[j]
for j in range(len(fprs_combo))
if fprs_combo[j] != 0 and \
fprs_combo[j] != 1 and \
tprs_combo[j] != 0 and \
tprs_combo[j] != 1 ]
tprs_combo_not_stuck = [ tprs_combo[j]
for j in range(len(tprs_combo))
if fprs_combo[j] != 0 and \
fprs_combo[j] != 1 and \
tprs_combo[j] != 0 and \
tprs_combo[j] != 1 ]
"""
fprs_combo_not_stuck = [ fprs_combo[j]
for j in range(1, len(fprs_combo))
if fprs_combo[j] != fprs_combo[j-1] and \
tprs_combo[j] != tprs_combo[j-1] ]
if fprs_combo:
fprs_combo_not_stuck.insert(0, fprs_combo[0])
tprs_combo_not_stuck = [ tprs_combo[j]
for j in range(1, len(tprs_combo))
if fprs_combo[j] != fprs_combo[j-1] and \
tprs_combo[j] != tprs_combo[j-1] ]
if tprs_combo:
tprs_combo_not_stuck.insert(0, tprs_combo[0])
new_delta_fprs = [ (fprs_combo[i] - fprs_combo[i-1]) / \
(var_attr_values[i] - var_attr_values[i-1])
for i in range(1, len(fprs_combo_not_stuck)) ]
new_delta_tprs = [ (tprs_combo[i] - tprs_combo[i-1]) / \
(var_attr_values[i] - var_attr_values[i-1])
for i in range(1, len(tprs_combo_not_stuck)) ]
delta_fprs.extend(new_delta_fprs)
delta_tprs.extend(new_delta_tprs)
delta_fprs_prev_params.extend(new_delta_fprs)
delta_tprs_prev_params.extend(new_delta_tprs)
# Categorize ROC curves by whether they start in the top center or
# bottom and record the corersponding delta fprs and tprs.
category = None
if fprs_combo and tprs_combo:
category = point_to_category(fprs_combo[0], tprs_combo[0],
fpr_partition_threshold = fpr_partition_threshold,
tpr_partition_threshold = tpr_partition_threshold)
deltas_partitioned[category][prev_params] = \
(new_delta_fprs, new_delta_tprs)
for pidx in xrange(len(fprs_combo)):
category = point_to_category(fprs_combo[pidx],
tprs_combo[pidx], fpr_partition_threshold = fpr_partition_threshold,
tpr_partition_threshold = tpr_partition_threshold)
# This should really be done at the individual point level, not at
# the ROC level...
actual_params_dict = prev_params._asdict()
actual_params_dict[var_attr] = var_attr_values[pidx]
actual_params = Params(**actual_params_dict)
rates_partitioned[category][actual_params] = \
(fprs_combo[pidx], tprs_combo[pidx])
# Record a measure of change in tpr and fpr for the purpose of
# ranking which parameters cause the most positive and negative
# deltas.
"""
f_num_geq_zero = len([ ndfpr for ndfpr in delta_fprs_prev_params
if ndfpr >= 0 ])
t_num_geq_zero = len([ ndtpr for ndtpr in delta_tprs_prev_params
if ndtpr >= 0 ])
"""
if len(delta_fprs_prev_params) > 0 and \
len(delta_tprs_prev_params) > 0:
"""
f_frac_geq_zero = \
float(f_num_geq_zero) / len(delta_fprs_prev_params)
t_frac_geq_zero = \
float(t_num_geq_zero) / len(delta_tprs_prev_params)
"""
# Store copies of all_fprs and all_tprs as well so we can plot ROC
# curves at the end in order of rank.
delta_rank[prev_params] = (np.mean(delta_fprs_prev_params),
np.mean(delta_tprs_prev_params),
all_fprs[:], all_tprs[:],
delta_fprs_prev_params[:],
delta_tprs_prev_params[:])
# Partition ROC points into top, bottom, center. For each one, record
# the FPR,TPR coordinates and the earlies and lates.
if all_fprs and all_tprs and all_earlies and all_lates:
for point_trials_idx in xrange(len(all_fprs)):
fprs_point_trials = all_fprs[point_trials_idx]
tprs_point_trials = all_tprs[point_trials_idx]
earlies_point_trials = all_earlies[point_trials_idx]
lates_point_trials = all_lates[point_trials_idx]
for trial_idx in xrange(len(fprs_point_trials)):
fpr_trial = fprs_point_trials[trial_idx]
tpr_trial = tprs_point_trials[trial_idx]
earlies_trial = earlies_point_trials[trial_idx]
lates_trial = lates_point_trials[trial_idx]
category = point_to_category(fpr_trial, tpr_trial,
fpr_partition_threshold = fpr_partition_threshold,
tpr_partition_threshold = tpr_partition_threshold)
earliness[category]['fprs'].append(fpr_trial)
earliness[category]['tprs'].append(tpr_trial)
earliness[category]['earlies'].append(earlies_trial)
earliness[category]['lates'].append(lates_trial)
earliness[category]['params'].append(prev_params)
# Record measures of 'position' for this ROC curve to use for ranking
# ROC curves by how far 'up' or 'down' they are. %TODO: awkward
# phrasing.
# Store copies of all_fprs and all_tprs as well so we can plot ROC
# curves at the end in order of rank.
if all_fprs and all_tprs:
max_mean_fpr = max([ np.mean(all_fprs_i)
for all_fprs_i in all_fprs ])
max_mean_tpr = max([ np.mean(all_tprs_i)
for all_tprs_i in all_tprs ])
min_mean_fpr = min([ np.mean(all_fprs_i)
for all_fprs_i in all_fprs ])
min_mean_tpr = min([ np.mean(all_tprs_i)
for all_tprs_i in all_tprs ])
updown_rank[prev_params] = (min_mean_fpr, min_mean_tpr,
max_mean_fpr, max_mean_tpr,
all_fprs[:], all_tprs[:])
# Slap (0,0) and (1,1) onto mean_fprs, mean_tprs to complete the
# ROC curve. Also put corresponding 0 stdevs in std_fprs, std_tprs.
mean_fprs.extend([0,1])
mean_tprs.extend([0,1])
std_fprs.extend([0,0])
std_tprs.extend([0,0])
point_sizes = [ s * 8 for s in np.array(range(0, len(mean_fprs))) + 0.1 ]
point_sizes.extend([0.1,0.1])
# Sort from left to right.
mean_fprs_ltor_enum = sorted(enumerate(mean_fprs),
key = lambda x:x[1])
mean_fprs_ltor = [ mean_fprs[i]
for (i,v) in mean_fprs_ltor_enum ]
mean_tprs_ltor = [ mean_tprs[i]
for (i,v) in mean_fprs_ltor_enum ]
std_fprs_ltor = [ std_fprs[i]
for (i,v) in mean_fprs_ltor_enum ]
std_tprs_ltor = [ std_tprs[i]
for (i,v) in mean_fprs_ltor_enum ]
point_sizes_ltor = [ point_sizes[i]
for (i,v) in mean_fprs_ltor_enum ]
if plot:
if save_fig:
if len(mean_fprs) > 3:
# There were Points other than the manually added (0,0) and (1,1).
plt.savefig(os.path.join('fig', var_attr,
const_attr_str) + '.png')
else:
# +-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
# | PLOT SCATTER
# +-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
plot_scatter = False
if plot_scatter and len(mean_fprs) > 3:
# Don't take the first and last if we've put a dummy 0 and 1 at
# each end of the means lists.
plt.subplot(121)
"""
plt.errorbar(mean_fprs_ltor, mean_tprs_ltor,
xerr = std_fprs_ltor, yerr = std_tprs_ltor,
color = 'k', linestyle = '-', linewidth = 0.5,
marker = 'o', elinewidth = 0.25)
"""
plt.plot(mean_fprs_ltor[1:-1], mean_tprs_ltor[1:-1], color = 'k', lw = 0.5)
plt.hold(True)
# For increasing point sizes.
# Turn on scatter for markers at points
"""
plt.scatter(mean_fprs_ltor, mean_tprs_ltor,
s = point_sizes_ltor, c = 'b')
"""
"""
plt.scatter(mean_fprs_ltor, mean_tprs_ltor,
s = 15, c = 'k')
"""
plt.title('All ROC Curves')
plt.xlabel('$FPR$')
plt.ylabel('$TPR$')
plt.grid(True)
"""
plt.title(const_attr_str + '\n' + var_attr + '=' + \
str(var_attr_values),
fontsize = 11)
"""
plt.xlim([-0.1,1.1])
plt.ylim([-0.1,1.1])
# Enable for sequential viewing
#plt.hold(False)
#raw_input()
#plt.draw()
# +-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
# | PLOT LINES
# +-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
plot_curves = True
if plot_curves:
num_unique = len(set([ (mean_fprs_ltor[i], mean_tprs_ltor[i])
for i in range(len(mean_fprs_ltor)) ]))
if num_unique > 3:
# Plot bezier curves.
plot_poly = True
if plot_poly:
verts = [ (mean_fprs_ltor[i], mean_tprs_ltor[i])
for i in range(len(mean_fprs_ltor)) ]
connection = Path.LINETO
codes = [ connection ] * (len(verts) - 1)
verts.insert(0, (1,1))
verts.insert(1, (1,0))
codes.insert(0, Path.MOVETO)
codes.insert(1, Path.LINETO)
codes.insert(2, Path.LINETO)
path = Path(verts, codes)
plt.subplot(1,2,2)
ax = plt.gca()
patch = patches.PathPatch(path, facecolor='k', lw=5, alpha = 1)
# Manually clear axes. This isn't a plotting command, so hold
# = False has no effect.
if not plt.ishold():
plt.cla()
ax.add_patch(patch)
plot_lines = False
if plot_lines:
# Plot lines.
plt.plot(mean_fprs_ltor, mean_tprs_ltor, color = 'k',
linewidth = 1)
plt.xlim([-0.1,1.1])
plt.ylim([-0.1,1.1])
plt.hold(True)
plt.title('ROC Curve Envelope', size = 16)
plt.xlabel('$FPR$', size = 16)
plt.ylabel('$TPR$', size = 16)
plt.grid(True)
# Enable for sequential viewing
#raw_input()
#plt.draw()
plt.gcf().subplots_adjust(top = 0.85)
# Reset variables for next ROC curve.
mean_fprs = []
mean_tprs = []
std_fprs = []
std_tprs = []
all_fprs = []
all_tprs = []
all_earlies = []
all_lates = []
var_attr_count = 0
var_attr_values = []
var_attr_values.append(curr_params._asdict()[var_attr])
# Save the relevant stats about the current point on the ROC curve.
if plot:
fprs = [ stats['fpr']
for stats in statsets_sorted[psi]
if stats ]
tprs = [ stats['tpr']
for stats in statsets_sorted[psi]
if stats ]
earlies_point_trials = []
lates_point_trials = []
for stats in statsets_sorted[psi]:
if not stats:
continue
earlies_trial = stats['earlies']
lates_trial = stats['lates']
earlies_point_trials.append(earlies_trial)
lates_point_trials.append(lates_trial)
if pnt:
print fprs, tprs
if fprs and tprs:
mfprs = np.mean(fprs)
mtprs = np.mean(tprs)
sfprs = np.std(fprs)
stprs = np.std(tprs)
# Record these so we plot them before moving on to the next ROC curve.
curr_params_dict = curr_params._asdict()
if all([ curr_params_dict[const_attr]
in const_attrs_allowed_values[const_attr]
for const_attr in const_attrs ]):
mean_fprs.append(mfprs)
mean_tprs.append(mtprs)
std_fprs.append(sfprs)
std_tprs.append(stprs)
# Record full list of fprs and tprs
all_fprs.append(fprs)
all_tprs.append(tprs)
# Record earlies and lates
all_earlies.append(earlies_point_trials)
all_lates.append(lates_point_trials)
var_attr_count += 1
print var_attr
plot_twitter_killer = False
if plot_twitter_killer:
nbins = 4
ecatd = earliness['center']
for i in xrange(len(ecatd['fprs'])):
ecat = [ -e / 3600000.0 for e in ecatd['earlies'][i] ]
lcat = [ l / 3600000.0 for l in ecatd['lates'][i] ]
params = ecatd['params'][i]
param_str = string.join(
[ '%s$=%s$' % (attr_math_name[attr], str(params._asdict()[attr]))
for attr in all_attrs ],
', ')
fpr = ecatd['fprs'][i]
tpr = ecatd['tprs'][i]
print i, ':', param_str, len(ecat), len(lcat), len(ecat) / float(len(lcat) + len(ecat)), fpr, tpr
#cond = len(ecat) > 1.45 * len(lcat) and fpr < 0.10 and tpr > 0.92 and \
# abs(np.mean(ecat)) > abs(np.mean(lcat))
cond = fpr < 0.05 and tpr > 0.94
param_avg = None
param_count = 0
if cond:
if param_avg is None:
param_avg = params
else:
param_avg += params
param_count += 1
plt.figure(figsize = (9, 2.75))
n, bins, hpatches = plt.hist(ecat, bins = nbins,
histtype = 'stepfilled', color = 'k',
align = 'mid', label = 'early')
print bins
plt.setp(hpatches, 'facecolor', 'w')
nmax = max(n)
plt.hold(True)
n, bins, hpatches = plt.hist(lcat, bins = nbins,
histtype = 'stepfilled', color = 'k',
align = 'mid', label = 'late')
print bins
plt.setp(hpatches, 'facecolor', 'k')
nmax = max(max(n), nmax)
plt.ylim([0, 1.2 * nmax])
xmax = max(lcat)
plate = len(lcat) / float(len(lcat) + len(ecat))
"""
plt.text(0.4 * xmax, nmax, '$P(early) = %.2f$' % (1 - plate),
size = 10)
plt.text(0.4 * xmax, 0.8 * nmax,
'$P(late) = %.2f$' % plate, size = 10)
plt.text(0.4 * xmax, 0.6 * nmax,
r'$\langle early \rangle = %.2f \; hrs.$' % (-np.mean(ecat)),
size = 10)
plt.text(0.4 * xmax, 0.4 * nmax,
r'$\langle late \rangle = %.2f \; hrs.$' % (np.mean(lcat)),
size = 10)
"""
plt.title('$FPR=%.2f$, $TPR=%.2f$, $P(early)=%.2f$, $\langle early \\rangle=%.2f hrs$\n%s' %
(ecatd['fprs'][i], ecatd['tprs'][i], 1 - plate,
-np.mean(ecat), param_str), size = 16)
plt.xlabel('hours late', size = 16)
plt.ylabel('count', size = 16)
plt.legend(loc = 1)
plt.gcf().subplots_adjust(left = 0.07, bottom = 0.20, right = 0.95,
top = 0.80)
#raw_input()
plot_earliness = False
if plot_earliness:
#plt.figure(figsize = (7,14))
#plt.suptitle('Early detection vs. position on ROC curve', size = 15)
"""
plt.subplot(211)
for (ci, category) in enumerate(earliness):
ecatd = earliness[category]
plt.scatter(ecatd['fprs'], ecatd['tprs'], s = 5, c = (0.75,0.75,0.75),
edgecolors = 'none')
plt.hold(True)
"""
cat_means = {}
for (ci, category) in enumerate(earliness):
ecatd = earliness[category]
mfprs = np.mean(ecatd['fprs'])
sfprs = np.std(ecatd['fprs'])
mtprs = np.mean(ecatd['tprs'])
stprs = np.std(ecatd['tprs'])
cat_means[category] = (mfprs, mtprs)
"""
plt.errorbar(mfprs, mtprs, xerr = sfprs, yerr = stprs,
linestyle = 'None', color = 'k', linewidth = 1.5)
plt.hold(True)
plt.scatter(mfprs, mtprs, s = 100, c = 'k')
plt.text(mfprs + 0.05, mtprs - 0.05, category, size = 15)
plt.axvline(0, linestyle = ':', color = 'k', linewidth = 1)
plt.axvline(1, linestyle = ':', color = 'k', linewidth = 1)
plt.axhline(0, linestyle = ':', color = 'k', linewidth = 1)
plt.axhline(1, linestyle = ':', color = 'k', linewidth = 1)
plt.axvline(fpr_partition_threshold, linestyle = ':', color = 'k')
plt.axhline(tpr_partition_threshold, linestyle = ':', color = 'k')
plt.xlim([-0.05, 1.05])
plt.ylim([-0.05, 1.05])
plt.xlabel('$FPR$')
plt.ylabel('$TPR$')
"""
nbins = 10
for (ci, category) in enumerate(earliness):
ecatd = earliness[category]
ecat = []
lcat = []
for e in ecatd['earlies']:
ecat.extend([ -ei / 3600000.0 for ei in e ])
for l in ecatd['lates']:
lcat.extend([ li / 3600000.0 for li in l])
#plt.subplot(6, 1, ci + 4)
plt.subplot(1, 3, ci + 1)
n, bins, hpatches = plt.hist(ecat, bins = nbins,
histtype = 'stepfilled', color = 'k',
align = 'mid', label = 'early')
plt.setp(hpatches, 'facecolor', 'w')
nmax = max(n)
plt.hold(True)
n, bins, hpatches = plt.hist(lcat, bins = nbins,
histtype = 'stepfilled', color = 'k',
align = 'mid', label = 'late')
plt.setp(hpatches, 'facecolor', 'k')
nmax = max(max(n), nmax)
plt.ylim([0, 1.2 * nmax])
plate = len(lcat) / float(len(lcat) + len(ecat))
"""
plt.text(-9.75, nmax, '$P(early) = %.2f$' % (1 - plate),
size = 10)
plt.text(-9.75, 0.8 * nmax,
'$P(late) = %.2f$' % plate, size = 10)
plt.text(-9.75, 0.6 * nmax,
r'$\langle early \rangle = %.2f \; hrs.$' % (-np.mean(ecat)),
size = 10)
plt.text(-9.75, 0.4 * nmax,
r'$\langle late \rangle = %.2f \; hrs.$' % (np.mean(lcat)),
size = 10)
"""
plt.title(r'$FPR=%.2f$, $TPR=%.2f$, $P(early)=%.2f$, $\langle early \rangle=%.2f hrs$' %
(cat_means[category][0], cat_means[category][1], 1 - plate,
-np.mean(ecat)), size = 16)
if ci == 2:
plt.xlabel('hours late', size = 16)
plt.ylabel('count', size = 16)
if ci == 0:
plt.legend(loc = 1)
plt.gcf().subplots_adjust(top = 0.96, bottom = 0.05, hspace = 0.30)
#plt.savefig('fig/final/early_vs_roc.eps')
break
plot_rates_partitioned = False
if plot_rates_partitioned:
for category in rates_partitioned:
print category
cat_params = rates_partitioned[category].keys()
attr_to_values = {}
for attr in all_attrs:
attr_to_values[attr] = []
for params in cat_params:
attr_to_values[attr].append(params._asdict()[attr])
cat_mean_attr_values = dict([ [attr, np.mean(attr_to_values[attr])]
for attr in attr_to_values
if attr_to_values[attr] ])
pp.pprint(cat_mean_attr_values)
break
# Partition delta ranked results into top, bottom, center.
plot_deltas_partitioned = False
if plot_deltas_partitioned:
plt.figure(figsize = (6,9))
plt.suptitle(var_attr)
for (ci, category) in enumerate(deltas_partitioned):
print category
deltas_cat = deltas_partitioned[category]
delta_fprs_cat = []
for params in deltas_cat:
delta_fprs_cat.extend(deltas_cat[params][0])
delta_tprs_cat = []
for params in deltas_cat:
delta_tprs_cat.extend(deltas_cat[params][1])
nbins = 30
if delta_fprs_cat:
delta_fprs_cat = np.array(delta_fprs_cat)
print 'mean delta fprs = %.4f' % np.mean(delta_fprs_cat)
"""
pos_ind = np.where(delta_fprs_cat > 0)[0]
neg_ind = np.where(delta_fprs_cat < 0)[0]
print 'overall:\t%.4f +/- %.4f' % (np.mean(delta_fprs_cat),
np.std(delta_fprs_cat))
if len(pos_ind) > 0:
print 'positive change:\t%.4f +/- %.4f\t(%.2f%%)' % (np.mean(delta_fprs_cat[pos_ind]),
np.std(delta_fprs_cat[pos_ind]),
100 * float(len(delta_fprs_cat[pos_ind])) / len(delta_fprs_cat))
if len(neg_ind) > 0:
print 'negative change:\t%.4f +/- %.4f\t(%.2f%%)' % (np.mean(delta_fprs_cat[neg_ind]),
np.std(delta_fprs_cat[neg_ind]),
100 * float(len(delta_fprs_cat[neg_ind])) / len(delta_fprs_cat))
print 'no change:\t(%.2f%%)' % \
(100 * float(len(delta_fprs_cat) - len(pos_ind) - len(neg_ind)) / len(delta_fprs_cat))
"""
"""
plt.subplot(3, 2, 2 * ci + 1)
plt.hist(delta_fprs_cat, bins = nbins)
plt.title(category + '$\Delta_p^{FPR}$')
"""
else:
print 'None'
if delta_tprs_cat:
delta_tprs_cat = np.array(delta_tprs_cat)
print 'mean delta tprs = %.4f' % np.mean(delta_tprs_cat)
"""
pos_ind = np.where(delta_tprs_cat > 0)[0]
neg_ind = np.where(delta_tprs_cat < 0)[0]
print 'overall:\t%.4f +/- %.4f' % (np.mean(delta_tprs_cat),
np.std(delta_tprs_cat))
if len(pos_ind) > 0:
print 'positive change:\t%.4f +/- %.4f\t(%.2f%%)' % (np.mean(delta_tprs_cat[pos_ind]),
np.std(delta_tprs_cat[pos_ind]),
100 * float(len(delta_tprs_cat[pos_ind])) / len(delta_tprs_cat))
if len(neg_ind) > 0:
print 'negative change:\t%.4f +/- %.4f\t(%.2f%%)' % (np.mean(delta_tprs_cat[neg_ind]),
np.std(delta_tprs_cat[neg_ind]),
100 * float(len(delta_tprs_cat[neg_ind])) / len(delta_tprs_cat))
print 'no change:\t(%.2f%%)' % \
(100 * float(len(delta_tprs_cat) - len(pos_ind) - len(neg_ind)) / len(delta_tprs_cat))
"""
"""
plt.subplot(3, 2, 2 * ci + 2)
plt.hist(delta_tprs_cat, bins = nbins)
plt.title(category + '$\Delta_p^{TPR}$')
"""
else:
print 'None'
plt.gcf().subplots_adjust(bottom = 0.08, hspace = 0.40)
# Plot a heatmap of positions in plane for each var_attr
plot_roc_plane_scatter = False
if plot_roc_plane_scatter:
expname = 'threshold_3'
if not os.path.exists(os.path.join('fig/final/position', expname)):
os.mkdir(os.path.join('fig/final/position', expname))
if not os.path.exists(os.path.join('fig/final/position', expname, var_attr)):
os.mkdir(os.path.join('fig/final/position', expname, var_attr))
for (cai, const_attr) in enumerate(const_attrs):
const_attr_values = const_attrs_allowed_values[const_attr]
plt.figure(figsize = (13, 3))
for (cavi, const_attr_value) in enumerate(const_attr_values):
print const_attr, '=', const_attr_value
udr_fprs = []
udr_tprs = []
fprs_for_const_attr_value = []
fprs_for_const_attr_value = []
entries_for_const_attr_value = \
[ updown_rank[udr] for udr in updown_rank
if udr._asdict()[const_attr] == const_attr_value ]
if not entries_for_const_attr_value:
# It is possible that for the given const_attr_value, none of deltas
# made the criterion for inclusion. For example, they might have
# been skipped because they corresponded to points on the ROC curve
# "stuck" near (0,0) or (1,1), for which deltas are meaningless.
print 'No matches for ', const_attr, '=', const_attr_value
continue
for udr in entries_for_const_attr_value:
udr_fprs.extend(np.array(udr[4]).flatten())
udr_tprs.extend(np.array(udr[5]).flatten())
"""
heatmap, xedges, yedges = np.histogram2d(udr_tprs,
udr_fprs, bins=40, range = [[0,1], [0,1]])
heatmap = np.log(heatmap + 0.1)
extent = [yedges[0], yedges[-1], xedges[0], xedges[-1]]
plt.imshow(np.flipud(heatmap), extent = extent)
"""
plt.subplot(1, 4, cavi + 1)
plt.scatter(udr_fprs, udr_tprs)
plt.hold(True)
mean_udr_fprs = np.mean(udr_fprs)
mean_udr_tprs = np.mean(udr_tprs)
print '%.2f,%.2f' % (mean_udr_fprs, mean_udr_tprs)
plt.axvline(mean_udr_fprs, lw = 1, ls = '--', color = 'k')
plt.axhline(mean_udr_tprs, lw = 1, ls = '--', color = 'k')
plt.text(0.4, 0.15, '$FPR_{mean} = %.2f$' % mean_udr_fprs)
plt.text(0.4, 0.05, '$TPR_{mean} = %.2f$' % mean_udr_tprs)
plt.xlim([-.1,1.1])
plt.ylim([-.1,1.1])
if cavi == 0:
plt.ylabel('$TPR$')
plt.xlabel('$FPR$')
plt.title(const_attr + '=' + str(const_attr_value))
plt.grid(True)
plt.hold(False)
plt.draw()
plt.gcf().subplots_adjust(left = 0.08, bottom = 0.15, right = 0.94,
wspace = 0.30, hspace = 0.20)
plt.savefig(os.path.join('fig/final/position/', expname,
var_attr, const_attr + '.eps'))
#raw_input()
# For current var_attr, compute rank of all other parameters by how far "up"
# or "down" the ROC curve lies in the continuum of FPR/TPR tradeoffs.
updown_rank = [ [udr, updown_rank[udr]] for udr in updown_rank ]
updown_rank_f_min = sorted(updown_rank, key = lambda x: x[1][0], reverse = True)
updown_rank_t_min = sorted(updown_rank, key = lambda x: x[1][1], reverse = True)
updown_rank_f_max = sorted(updown_rank, key = lambda x: x[1][2], reverse = True)
updown_rank_t_max = sorted(updown_rank, key = lambda x: x[1][3], reverse = True)
plot_roc_updown_ranked = False
if plot_roc_updown_ranked:
for updown_rank_sorted in [ updown_rank_f_min, updown_rank_f_max ]:
plt.figure(figsize = (10,10))
print '\n\n'
for udri, udr in enumerate(updown_rank_sorted):
if udri >= 25:
break
udr_params = udr[0]
udr_f_min_score = udr[1][0]
udr_t_min_score = udr[1][1]
udr_f_max_score = udr[1][2]
udr_t_max_score = udr[1][3]
print 'upr_f_min_score', udr_f_min_score
print 'upr_t_min_score', udr_t_min_score
print 'upr_f_max_score', udr_f_max_score
print 'upr_t_max_score', udr_t_max_score
udr_all_fprs = udr[1][4]
udr_all_tprs = udr[1][5]
udr_mean_fprs = [ np.mean(daf) for daf in udr_all_fprs ]
udr_mean_tprs = [ np.mean(dat) for dat in udr_all_tprs ]
udr_std_fprs = [ np.std(daf) for daf in udr_all_fprs ]
udr_std_tprs = [ np.std(dat) for dat in udr_all_tprs ]
# Plot thumbnails.
plt.subplot(5, 5, udri + 1)
plt.errorbar(udr_mean_fprs, udr_mean_tprs, udr_std_fprs, udr_std_tprs,
linestyle = 'None', color = 'b')
plt.hold(True)
plt.scatter(udr_mean_fprs, udr_mean_tprs,
s = [ 2 + 15 * i for i in range(len(udr_mean_tprs)) ],
c = 'b')
# __str__() doesn't work for some reason... TODO
plt.title(str([udr_params._asdict()[k]
for k in const_attrs]), fontsize = 11)
plt.setp(plt.gca(), xticklabels=[])
plt.setp(plt.gca(), yticklabels=[])
print udr_params.__str__
plt.xlim([-0.1, 1.1])
plt.ylim([-0.1, 1.1])
plt.grid(True)
plt.hold(False)
plt.draw()
raw_input()
# For current var_attr, compute rank of all other parameters by how much
# positive and negative delta fprs and delta tprs they cause.
delta_rank = [ [drk, delta_rank[drk]] for drk in delta_rank ]
delta_rank_f = sorted(delta_rank, key = lambda x: x[1][0],
reverse = True)
delta_rank_t = sorted(delta_rank, key = lambda x: x[1][1],
reverse = True)
# print '\n\ndelta_rank_f'
# pp.pprint(delta_rank_f)
# print '\n\ndelta_rank_t'
# pp.pprint(delta_rank_t)
plot_roc_delta_ranked = False
if plot_roc_delta_ranked:
for delta_rank_sorted in [ delta_rank_f ]:
print '\n\n'
# plt.figure(figsize = (10,10))
plt.figure(figsize = (10,5))
plt.suptitle('Top $\Delta_p^{FPR}$ for ' + var_attr + \
'\nconstant params = ' + str(const_attrs))
for dri, dr in enumerate(delta_rank_sorted):
if dri >= 8:
break
dr_params = dr[0]
dr_fscore = dr[1][0]
dr_tscore = dr[1][1]
print 'delta fpr score', dr_fscore, 'delta tpr score', dr_tscore
dr_all_fprs = dr[1][2]
dr_all_tprs = dr[1][3]
dr_mean_fprs = [ np.mean(daf) for daf in dr_all_fprs ]
dr_mean_tprs = [ np.mean(dat) for dat in dr_all_tprs ]
dr_std_fprs = [ np.std(daf) for daf in dr_all_fprs ]
dr_std_tprs = [ np.std(dat) for dat in dr_all_tprs ]
plt.subplot(2, 4, dri + 1)
#plt.subplot(4, 4, dri + 1)
plt.errorbar(dr_mean_fprs, dr_mean_tprs, xerr=dr_std_fprs, yerr=dr_std_tprs,
linestyle = 'None', color = 'b')
plt.hold(True)
plt.scatter(dr_mean_fprs, dr_mean_tprs,
s = [ 2 + 15 * i for i in range(len(dr_mean_tprs)) ],
c = 'b')
plt.title(str([dr_params._asdict()[k]
for k in const_attrs]), fontsize = 11)
# __str__() doesn't work for some reason... TODO
print dr_params.__str__
plt.xlim([-0.1, 1.1])
plt.ylim([-0.1, 1.1])
plt.xlabel('$FPR$')
if dri == 0:
plt.ylabel('$TPR$')
plt.grid(True)
plt.draw()
#plt.setp(plt.gca(), xticklabels=[])
#plt.setp(plt.gca(), yticklabels=[])
plt.hold(False)
plt.gcf().subplots_adjust(top = 0.80, wspace = 0.45, hspace = 0.45)
plt.savefig('fig/final/top_fpr/' + var_attr + '.eps')
plt.draw()
plot_secondary_effect = False
if plot_secondary_effect:
for const_attr in const_attrs:
const_attr_values_f = [ dr[0]._asdict()[const_attr]
for dr in delta_rank_f ]
rank_scores_f = [dr[1][0] for dr in delta_rank_f]
const_attr_values_t = [ dr[0]._asdict()[const_attr]
for dr in delta_rank_t ]
rank_scores_t = [dr[1][1] for dr in delta_rank_t]
plt.subplot(121)
plt.scatter(const_attr_values_f, rank_scores_f)
plt.hold(True)
plt.axhline(0, linestyle = '--', color = 'k')
plt.title('fpr ' + const_attr)
plt.hold(False)
plt.subplot(122)
plt.scatter(const_attr_values_t, rank_scores_t)
plt.hold(True)
plt.axhline(0, linestyle = '--', color = 'k')
plt.title('tpr ' + const_attr)
plt.hold(False)
raw_input()
plot_secondary_effect_hist = False
if plot_secondary_effect_hist:
for (cai, const_attr) in enumerate(const_attrs):
plt.figure(figsize = (14, 3))
const_attr_values = const_attrs_allowed_values[const_attr]
# Store all heatmaps and extents, get a common extent, and plot all
# heatmaps together at the end.
dr_all_delta_fprs = []
dr_all_delta_tprs = []
ranges = []
for (cavi, const_attr_value) in enumerate(const_attr_values):
print const_attr, '=', const_attr_value
dr_delta_fprs = []
dr_delta_tprs = []
entries_for_const_attr_value = \
[ drf[1] for drf in delta_rank_f
if drf[0]._asdict()[const_attr] == const_attr_value ]
if not entries_for_const_attr_value:
# It is possible that for the given const_attr_value, none of deltas
# made the criterion for inclusion. For example, they might have
# been skipped because they corresponded to points on the ROC curve
# "stuck" near (0,0) or (1,1), for which deltas are meaningless.
continue
for dr in entries_for_const_attr_value:
dr_delta_fprs.extend(dr[4])
dr_delta_tprs.extend(dr[5])
#plt.subplot(223)
dr_all_delta_fprs.append(dr_delta_fprs)
dr_all_delta_tprs.append(dr_delta_tprs)
ranges.append([[min(dr_delta_fprs), max(dr_delta_fprs)],
[min(dr_delta_tprs), max(dr_delta_tprs)]])
"""
plt.subplot(334)
n, bins, hpatches = plt.hist(dr_delta_tprs, bins = 30, normed = False,
histtype = 'stepfilled', color = 'k',
align = 'mid', orientation = 'horizontal')
plt.setp(hpatches, 'facecolor', 'm')
plt.axhline(0, linestyle = '--', color = 'k')
plt.title('$\Delta_p^{TPR}$')
plt.setp(plt.gca(), xticklabels=[])
plt.setp(plt.gca(), yticklabels=[])
plt.subplot(221)
n, bins, hpatches = plt.hist(dr_delta_fprs, bins = 30, normed = False,
histtype = 'stepfilled', color = 'k',
align = 'mid')
plt.setp(hpatches, 'facecolor', 'm')
plt.axvline(0, linestyle = '--', color = 'k')
plt.title('$\Delta_p^{FPR}$')
plt.setp(plt.gca(), xticklabels=[])
plt.setp(plt.gca(), yticklabels=[])
"""
"""
miny = min([ extent[0] for extent in extents ])
maxy = max([ extent[1] for extent in extents ])
minx = min([ extent[2] for extent in extents ])
maxx = max([ extent[3] for extent in extents ])
extent = [miny, maxy, minx, maxx]
"""
xmin = min([ rangei[0][0] for rangei in ranges ])
xmax = max([ rangei[0][1] for rangei in ranges ])
ymin = min([ rangei[1][0] for rangei in ranges ])
ymax = max([ rangei[1][1] for rangei in ranges ])
common_range = [[ymin, ymax], [xmin, xmax]]
for ri in xrange(len(ranges)):
dr_delta_fprs = dr_all_delta_fprs[ri]
dr_delta_tprs = dr_all_delta_tprs[ri]
plt.subplot(1, 4, ri + 1)
heatmap, xedges, yedges = np.histogram2d(dr_delta_tprs,
dr_delta_fprs, bins=25, range = common_range)
extent = [yedges[0], yedges[-1], xedges[0], xedges[-1]]
plt.contour(heatmap, 20, extent = extent)
plt.hold(True)
plt.axvline(0, ls = '--', lw = 1.5, color = 'k')
plt.axhline(0, ls = '--', lw = 1.5, color = 'k')
plt.axvline(np.mean(dr_delta_fprs), ls = ':',
color = 'k')
plt.axhline(np.mean(dr_delta_tprs), ls = ':',
color = 'k')
plt.title(const_attr + '=' + str(const_attr_values[ri]))
if ri == 0:
plt.ylabel('$\Delta_p^{TPR}$', fontsize = 15)
plt.xlabel('$\Delta_p^{FPR}$', fontsize = 15)
plt.gcf().subplots_adjust(bottom = 0.20, wspace = 0.35)
plt.draw()
#plt.savefig('fig/final/delta_hist_sec/' + var_attr + '/' + \
# const_attr + '.eps')
raw_input()
# Plot deltas in fpr and tpr as 2d histogram.
plot_delta_dist = False
if plot_delta_dist and delta_fprs and delta_tprs:
plt.figure(figsize = (6,6))
plt.suptitle(var_attr)
plt.subplot(223)
heatmap, xedges, yedges = np.histogram2d(delta_tprs, delta_fprs, bins=30)
extent = [yedges[0], yedges[-1], xedges[0], xedges[-1]]
plt.contour(heatmap, 35, extent=extent)
plt.hold(True)
plt.axvline(0, linestyle = '--', color = 'k')
plt.axhline(0, linestyle = '--', color = 'k')
plt.subplot(224)
n, bins, hpatches = plt.hist(delta_tprs, bins = 30, normed = False,
histtype = 'stepfilled', color = 'k',
align = 'mid', orientation = 'horizontal')
plt.setp(hpatches, 'facecolor', 'm')
plt.axhline(0, linestyle = '--', color = 'k')
plt.title('$\Delta_p^{TPR}$')
#plt.title('\Delta_p^{TPR}')
plt.subplot(221)
n, bins, hpatches = plt.hist(delta_fprs, bins = 30, normed = False,
histtype = 'stepfilled', color = 'k',
align = 'mid')
plt.setp(hpatches, 'facecolor', 'm')
plt.axvline(0, linestyle = '--', color = 'k')
plt.title('$\Delta_p^{FPR}$')
#plt.title('\Delta_p^{FPR}')
"""
def plotMarginal(result,
dim=0,
lineColor=[0, 105 / 255, 170 / 255],
lineWidth=2,
xLabel='',
yLabel='Marginal Density',
labelSize=15,
tufteAxis=False,
prior=True,
priorColor=[.7, .7, .7],
CIpatch=True,
plotPE=True,
axisHandle=None,
showImediate=True):
"""
Plots the marginal for a single dimension.
result should be a result struct from the main psignifit routine
dim is the parameter to plot:
1=threshold, 2=width, 3=lambda, 4=gamma, 5=sigma
"""
from utils import strToDim
if isinstance(dim, str): dim = strToDim(dim)
if len(result['marginals'][dim]) <= 1:
print(
'Error: The parameter you wanted to plot was fixed in the analysis!'
)
return
if axisHandle == None: axisHandle = plt.gca()
try:
plt.axes(axisHandle)
plt.rc('text', usetex=True)
except TypeError:
raise ValueError('Invalid axes handle provided to plot in.')
if not xLabel:
if dim == 0: xLabel = 'Threshold'
elif dim == 1: xLabel = 'Width'
elif dim == 2: xLabel = r'$\lambda$'
elif dim == 3: xLabel = r'$\gamma$'
elif dim == 4: xLabel = r'$\eta$'
x = result['marginalsX'][dim]
marginal = result['marginals'][dim]
CI = np.hstack(result['conf_Intervals'][dim].T)
Fit = result['Fit'][dim]
holdState = plt.ishold()
if not holdState: plt.cla()
plt.hold(True)
# patch for confidence region
if CIpatch:
xCI = np.array([CI[0], CI[1], CI[1], CI[0]])
xCI = np.insert(xCI, 1, x[np.logical_and(x >= CI[0], x <= CI[1])])
yCI = np.array([
np.interp(CI[0], x, marginal),
np.interp(CI[1], x, marginal), 0, 0
])
yCI = np.insert(yCI, 1,
marginal[np.logical_and(x >= CI[0], x <= CI[1])])
from matplotlib.patches import Polygon as patch
color = .5 * np.array(lineColor) + .5 * np.array([1, 1, 1])
axisHandle.add_patch(patch(np.array([xCI, yCI]).T, fc=color, ec=color))
# plot prior
if prior:
xprior = np.linspace(min(x), max(x), 1000)
plt.plot(xprior,
result['options']['priors'][dim](xprior),
'--',
c=priorColor,
clip_on=False)
# posterior
plt.plot(x, marginal, lw=lineWidth, c=lineColor, clip_on=False)
# point estimate
if plotPE:
plt.plot([Fit, Fit], [0, np.interp(Fit, x, marginal)],
'k',
clip_on=False)
plt.xlabel(xLabel, fontsize=labelSize, visible=True)
plt.ylabel(yLabel, fontsize=labelSize, visible=True)
plt.tick_params(direction='out', right='off', top='off')
for side in ['top', 'right']:
axisHandle.spines[side].set_visible(False)
plt.ticklabel_format(style='sci', scilimits=(-2, 4))
plt.hold(holdState)
if (showImediate):
plt.xlim([min(x), max(x)])
plt.ylim([0, 1.1 * max(marginal)])
plt.show()
return axisHandle
def draw(g, pos=None, ax=None, hold=None, ax_size=(0, 0, 1, 1), **kwds):
"""Draw the graph g with Matplotlib.
Draw the graph as a simple representation with no node
labels or edge labels and using the full Matplotlib figure area
and no axis labels by default. See draw_mtg() for more
full-featured drawing that allows title, axis labels etc.
Parameters
----------
g : graph
A MTG graph
pos : dictionary, optional
A dictionary with nodes as keys and positions as values.
If not specified a spring layout positioning will be computed.
See mtg.layout for functions that compute node positions.
ax : Matplotlib Axes object, optional
Draw the graph in specified Matplotlib axes.
hold : bool, optional
Set the Matplotlib hold state. If True subsequent draw
commands will be added to the current axes.
**kwds : optional keywords
See draw.draw_mtg() for a description of optional keywords.
Examples
--------
>>> g = om.random_mtg()
>>> draw.draw(g)
>>> draw.draw(g,pos=om.spring_layout(G)) # use spring layout
See Also
--------
draw_mtg()
draw_mtg_vertices()
draw_mtg_edges()
draw_mtg_labels()
draw_mtg_edge_labels()
Notes
-----
This function has the same name as pylab.draw and pyplot.draw
so beware when using
>>> from openalea.mtg.draw import *
since you might overwrite the pylab.draw function.
With pyplot use
>>> import matplotlib.pyplot as plt
>>> import openalea.mtg as om
>>> g=om.random_mtg()
>>> om.draw(g) # mtg draw()
>>> plt.draw() # pyplot draw()
Also see the openalea.mtg drawing examples at
openalea gallery.
"""
try:
import matplotlib.pyplot as plt
except ImportError:
raise ImportError("Matplotlib required for draw()")
except RuntimeError:
print("Matplotlib unable to open display")
raise
if ax is None:
cf = plt.gcf()
else:
cf = ax.get_figure()
cf.set_facecolor('w')
if ax is None:
if cf._axstack() is None:
ax = cf.add_axes(ax_size)
else:
ax = cf.gca()
# allow callers to override the hold state by passing hold=True|False
b = plt.ishold()
h = kwds.pop('hold', None)
if h is not None:
plt.hold(h)
try:
draw_mtg(g, pos=pos, ax=ax, **kwds)
ax.set_axis_off()
plt.draw_if_interactive()
except:
plt.hold(b)
raise
plt.hold(b)
return
def plotMarginal(result,
dim = 0,
lineColor = [0, 105/255, 170/255],
lineWidth = 2,
xLabel = '',
yLabel = 'Marginal Density',
labelSize = 15,
tufteAxis = False,
prior = True,
priorColor = [.7, .7, .7],
CIpatch = True,
plotPE = True,
axisHandle = None):
"""
Plots the marginal for a single dimension.
result should be a result struct from the main psignifit routine
dim is the parameter to plot:
1=threshold, 2=width, 3=lambda, 4=gamma, 5=sigma
"""
from utils import strToDim
if isinstance(dim,str): dim = strToDim(dim)
if len(result['marginals'][dim]) <= 1:
print('Error: The parameter you wanted to plot was fixed in the analysis!')
return
if axisHandle == None: axisHandle = plt.gca()
try:
plt.axes(axisHandle)
plt.rc('text', usetex=True)
except TypeError:
raise ValueError('Invalid axes handle provided to plot in.')
if not xLabel:
if dim == 0: xLabel = 'Threshold'
elif dim == 1: xLabel = 'Width'
elif dim == 2: xLabel = r'$\lambda$'
elif dim == 3: xLabel = r'$\gamma$'
elif dim == 4: xLabel = r'$\eta$'
x = result['marginalsX'][dim]
marginal = result['marginals'][dim]
CI = np.hstack(result['conf_Intervals'][dim].T)
Fit = result['Fit'][dim]
holdState = plt.ishold()
if not holdState: plt.cla()
plt.hold(True)
# patch for confidence region
if CIpatch:
xCI = np.array([CI[0], CI[1], CI[1], CI[0]])
xCI = np.insert(xCI, 1, x[np.logical_and(x>=CI[0], x<=CI[1])])
yCI = np.array([np.interp(CI[0], x, marginal), np.interp(CI[1], x, marginal), 0, 0])
yCI = np.insert(yCI, 1, marginal[np.logical_and(x>=CI[0], x<=CI[1])])
from matplotlib.patches import Polygon as patch
color = .5*np.array(lineColor) + .5* np.array([1,1,1])
axisHandle.add_patch(patch(np.array([xCI,yCI]).T, fc=color, ec=color))
# plot prior
if prior:
xprior = np.linspace(min(x), max(x), 1000)
plt.plot(xprior, result['options']['priors'][dim](xprior), '--', c=priorColor, clip_on=False)
# posterior
plt.plot(x, marginal, lw=lineWidth, c=lineColor, clip_on=False)
# point estimate
if plotPE:
plt.plot([Fit,Fit], [0, np.interp(Fit, x, marginal)], 'k', clip_on=False)
plt.xlim([min(x), max(x)])
plt.ylim([0, 1.1*max(marginal)])
plt.xlabel(xLabel, fontsize=labelSize, visible=True)
# if tufteAxis
plt.ylabel(yLabel, fontsize=labelSize, visible=True)
# if tufteAxis
# else:
plt.tick_params(direction='out', right='off', top='off')
for side in ['top','right']: axisHandle.spines[side].set_visible(False)
plt.ticklabel_format(style='sci', scilimits=(-2,4))
plt.hold(holdState)
plt.show()
return axisHandle
def plotPsych(result,
dataColor = [0, 105./255, 170./255],
plotData = True,
lineColor = [0, 0, 0],
lineWidth = 2,
xLabel = 'Stimulus Level',
yLabel = 'Proportion Correct',
labelSize = 15,
fontSize = 10,
fontName = 'Helvetica',
tufteAxis = False,
plotAsymptote = True,
plotThresh = True,
aspectRatio = False,
extrapolLength = .2,
CIthresh = False,
dataSize = 0,
axisHandle = None):
"""
This function produces a plot of the fitted psychometric function with
the data.
"""
fit = result['Fit']
data = result['data']
options = result['options']
if axisHandle == None: axisHandle = plt.gca()
try:
plt.axes(axisHandle)
except TypeError:
raise ValueError('Invalid axes handle provided to plot in.')
if np.isnan(fit[3]): fit[3] = fit[2]
if data.size == 0: return
if dataSize == 0: dataSize = 10000. / np.sum(data[:,2])
if 'nAFC' in options['expType']:
ymin = 1. / options['expN']
ymin = min([ymin, min(data[:,1] / data[:,2])])
else:
ymin = 0
# PLOT DATA
holdState = plt.ishold()
if not holdState: plt.cla()
plt.hold(True)
xData = data[:,0]
if plotData:
yData = data[:,1] / data[:,2]
markerSize = np.sqrt(dataSize/2 * data[:,2])
for i in range(len(xData)):
plt.plot(xData[i], yData[i], '.', ms=markerSize[i], c=dataColor, clip_on=False)
# PLOT FITTED FUNCTION
if options['logspace']:
xMin = np.log(min(xData))
xMax = np.log(max(xData))
xLength = xMax - xMin
x = np.exp(np.linspace(xMin, xMax, num=1000))
xLow = np.exp(np.linspace(xMin - extrapolLength*xLength, xMin, num=100))
xHigh = np.exp(np.linspace(xMax, xMax + extrapolLength*xLength, num=100))
axisHandle.set_xscale('log')
else:
xMin = min(xData)
xMax = max(xData)
xLength = xMax - xMin
x = np.linspace(xMin, xMax, num=1000)
xLow = np.linspace(xMin - extrapolLength*xLength, xMin, num=100)
xHigh = np.linspace(xMax, xMax + extrapolLength*xLength, num=100)
fitValuesLow = (1 - fit[2] - fit[3]) * options['sigmoidHandle'](xLow, fit[0], fit[1]) + fit[3]
fitValuesHigh = (1 - fit[2] - fit[3]) * options['sigmoidHandle'](xHigh, fit[0], fit[1]) + fit[3]
fitValues = (1 - fit[2] - fit[3]) * options['sigmoidHandle'](x, fit[0], fit[1]) + fit[3]
plt.plot(x, fitValues, c=lineColor, lw=lineWidth, clip_on=False)
plt.plot(xLow, fitValuesLow, '--', c=lineColor, lw=lineWidth, clip_on=False)
plt.plot(xHigh, fitValuesHigh, '--', c=lineColor, lw=lineWidth, clip_on=False)
# PLOT PARAMETER ILLUSTRATIONS
# THRESHOLD
if plotThresh:
if options['logspace']:
x = [np.exp(fit[0]), np.exp(fit[0])]
else:
x = [fit[0], fit[0]]
y = [ymin, fit[3] + (1 - fit[2] - fit[3]) * options['threshPC']]
plt.plot(x, y, '-', c=lineColor)
# ASYMPTOTES
if plotAsymptote:
plt.plot([min(xLow), max(xHigh)], [1-fit[2], 1-fit[2]], ':', c=lineColor, clip_on=False)
plt.plot([min(xLow), max(xHigh)], [fit[3], fit[3]], ':', c=lineColor, clip_on=False)
# CI-THRESHOLD
if CIthresh:
CIs = result['confIntervals']
y = np.array([fit[3] + .5*(1 - fit[2] - fit[3]) for i in range(2)])
plt.plot(CIs[0,:,0], y, c=lineColor)
plt.plot([CIs[0,0,0], CIs[0,0,0]], y + [-.01, .01], c=lineColor)
plt.plot([CIs[0,1,0], CIs[0,1,0]], y + [-.01, .01], c=lineColor)
#AXIS SETTINGS
plt.axis('tight')
plt.tick_params(labelsize=fontSize)
plt.xlabel(xLabel, fontname=fontName, fontsize=labelSize)
plt.ylabel(yLabel, fontname=fontName, fontsize=labelSize)
if aspectRatio: axisHandle.set_aspect(2/(1 + np.sqrt(5)))
plt.ylim([ymin, 1])
# tried to mimic box('off') in matlab, as box('off') in python works differently
plt.tick_params(direction='out',right='off',top='off')
for side in ['top','right']: axisHandle.spines[side].set_visible(False)
plt.ticklabel_format(style='sci',scilimits=(-2,4))
plt.hold(holdState)
plt.show()
return axisHandle
def plotPZ(H, color='b', markersize=5, showlist=False):
"""
Plots the poles and zeros of a transfer function.
Parameters
----------
H : tuple
transfer function in pzk or nd form
showlist : bool
if showlist is true, a list of the poles and zeros is superimposed
onto the plot.
Other Parameters
----------------
color : string or list of strings, optional
color or colors to plot the poles and the zeros (defaults to 'b'
meaning black)
markersize : real, optional
size of the markers used to represent the poles and the zeros
(defaults to 5)
Notes
-----
See `matplotlib` for info about color codes.
"""
pole_fmt = {'marker': 'x', 'markersize': markersize}
zero_fmt = {'marker': 'o', 'markersize': markersize}
if isinstance(color, list):
pole_fmt['color'] = color[0]
zero_fmt['color'] = color[1]
else:
pole_fmt['color'] = color
zero_fmt['color'] = color
if len(H) == 2:
H = tf2zpk(*H)
z = cplxpair(H[0])
p = cplxpair(H[1])
hold_status = plt.ishold()
plt.grid(True)
# Plot x and o for poles and zeros, respectively
plt.plot(p.real, p.imag, linestyle='None', **pole_fmt)
plt.hold(True)
if len(z) > 0:
plt.plot(z.real, z.imag, linestyle='None', **zero_fmt)
# Draw unit circle, real axis and imag axis
circle = np.exp(2j*np.pi*np.linspace(0, 1, 100))
plt.plot(circle.real, circle.imag, 'k')
plt.axis('equal')
limits = plt.axis()
plt.plot([0, 0], limits[1:3], 'k:')
plt.plot(limits[0:2], [0, 0], 'k:')
if showlist:
# List the poles and zeros
pp = p[p.imag >= 0]
y = 0.05*(len(pp)+1)
str_p = 'Poles:'
plt.text(-0.9, y, str_p,
horizontalalignment='left',
verticalalignment='center')
y = y - 0.1
for i in range(len(pp)):
if pp[i].imag == 0:
str_p = '$%+.4f$' % pp[i].real
else:
str_p = r'$%+.4f\pm \mathrm{j}%.4f$' % (pp[i].real, pp[i].imag)
plt.text(-0.9, y, str_p,
horizontalalignment='left',
verticalalignment='center')
y = y - 0.1
if len(z) > 0:
zz = z[z.imag >= 0]
y = 0.05*(len(zz)+1)
str_z = 'Zeros:'
plt.text(0, y, str_z,
horizontalalignment='left',
verticalalignment='center')
y = y - 0.1
for i in range(len(zz)):
if zz[i].imag == 0:
str_z = '$%+.4f$' % zz[i].real
else:
str_z = (r'$%+.4f\pm \mathrm{j}%.4f$' %
(zz[i].real, zz[i].imag))
plt.text(0, y, str_z,
horizontalalignment='left',
verticalalignment='center')
y = y - 0.1
plt.ylabel('Imag')
plt.xlabel('Real')
if not hold_status:
plt.hold(False)
def _plotonehist2(x,
y,
parx,
pary,
smooth=False,
colormap=True,
ranges={},
labels={},
bins=50,
levels=3,
weights=None,
color='k',
linewidth=1):
hold = P.ishold()
hrange = [
ranges[parx] if parx in ranges else [N.min(x), N.max(x)],
ranges[pary] if pary in ranges else [N.min(y), N.max(y)]
]
[h, xs, ys] = N.histogram2d(x,
y,
bins=bins,
normed=True,
range=hrange,
weights=weights)
if colormap:
P.contourf(0.5 * (xs[1:] + xs[:-1]),
0.5 * (ys[1:] + ys[:-1]),
h.T,
cmap=P.get_cmap('YlOrBr'))
P.hold(True)
H, tmp1, tmp2 = N.histogram2d(x,
y,
bins=bins,
range=hrange,
weights=weights)
if smooth:
# only need scipy if we're smoothing
import scipy.ndimage.filters as SNF
H = SNF.gaussian_filter(H, sigma=1.5 if smooth is True else smooth)
if weights is None:
H = H / len(x)
else:
H = H / N.sum(H) # I think this is right...
Hflat = -N.sort(-H.flatten()) # sort highest to lowest
cumprob = N.cumsum(Hflat) # sum cumulative probability
levels = [
N.interp(level, cumprob, Hflat)
for level in [0.6826, 0.9547, 0.9973][:levels]
]
xs = N.linspace(hrange[0][0], hrange[0][1], bins)
ys = N.linspace(hrange[1][0], hrange[1][1], bins)
P.contour(xs,
ys,
H.T,
levels,
colors=color,
linestyles=['-', '--', '-.'][:len(levels)],
linewidths=linewidth)
P.hold(hold)
if parx in ranges:
P.xlim(ranges[parx])
if pary in ranges:
P.ylim(ranges[pary])
P.xlabel(labels[parx] if parx in labels else parx)
P.ylabel(labels[pary] if pary in labels else pary)
P.locator_params(axis='both', nbins=6)
P.minorticks_on()
fx = P.ScalarFormatter(useOffset=True, useMathText=True)
fx.set_powerlimits((-3, 4))
fx.set_scientific(True)
fy = P.ScalarFormatter(useOffset=True, useMathText=True)
fy.set_powerlimits((-3, 4))
fy.set_scientific(True)
P.gca().xaxis.set_major_formatter(fx)
P.gca().yaxis.set_major_formatter(fy)
xmax = max(datos[:, 0])
index = np.where(
datos == xmax
)[0] #conozco el inicio (o el final) de cada bloque, me devuelve la posicion en datos[]
#de cada elemento fin de bloque
n = len(
index
) #la longitud de este array me dara el numero total de bloques (imagenes)
imagenes = np.split(
ary=datos, indices_or_sections=n,
axis=0) #divido datos en cada uno de los bloques (imagenes)
#axis=0 separa por filas (cada pareja de datos es una fila)
#imagenes[i] me dara la imagen en t=ti
#imagenes[0][:,0] me da las'x' de la imagen t=t0
#imagenes[0][:,1] me da las'y' de la imagen t=t0
ymin = min(
imagenes[0][:,
1]) #el min y max de la primera imagen sera max y min globales
ymax = max(imagenes[0][:, 1])
plt.figure()
plt.xlim((xmin, xmax))
plt.ylim((ymin, ymax))
status = plt.ishold()
if status == True:
plt.hold()
for i in range(n):
plt.plot(x=imagenes[i][:, 0], y=imagenes[i][:, 1])
plt.show()
def draw(G, pos=None, ax=None, hold=None, **kwds):
"""Draw the graph G with Matplotlib.
Draw the graph as a simple representation with no node
labels or edge labels and using the full Matplotlib figure area
and no axis labels by default. See draw_networkx() for more
full-featured drawing that allows title, axis labels etc.
Parameters
----------
G : graph
A networkx graph
pos : dictionary, optional
A dictionary with nodes as keys and positions as values.
If not specified a spring layout positioning will be computed.
See networkx.layout for functions that compute node positions.
ax : Matplotlib Axes object, optional
Draw the graph in specified Matplotlib axes.
hold : bool, optional
Set the Matplotlib hold state. If True subsequent draw
commands will be added to the current axes.
**kwds : optional keywords
See networkx.draw_networkx() for a description of optional keywords.
Examples
--------
>>> G=nx.dodecahedral_graph()
>>> nx.draw(G)
>>> nx.draw(G,pos=nx.spring_layout(G)) # use spring layout
See Also
--------
draw_networkx()
draw_networkx_nodes()
draw_networkx_edges()
draw_networkx_labels()
draw_networkx_edge_labels()
Notes
-----
This function has the same name as pylab.draw and pyplot.draw
so beware when using
>>> from networkx import *
since you might overwrite the pylab.draw function.
With pyplot use
>>> import matplotlib.pyplot as plt
>>> import networkx as nx
>>> G=nx.dodecahedral_graph()
>>> nx.draw(G) # networkx draw()
>>> plt.draw() # pyplot draw()
Also see the NetworkX drawing examples at
http://networkx.lanl.gov/gallery.html
"""
try:
import matplotlib.pyplot as plt
except ImportError:
raise ImportError("Matplotlib required for draw()")
except RuntimeError:
print("Matplotlib unable to open display")
raise
if ax is None:
cf = plt.gcf()
else:
cf = ax.get_figure()
cf.set_facecolor('w')
if ax is None:
if cf._axstack() is None:
ax = cf.add_axes((0, 0, 1, 1))
else:
ax = cf.gca()
# allow callers to override the hold state by passing hold=True|False
if 'with_labels' not in kwds:
kwds['with_labels'] = False
b = plt.ishold()
h = kwds.pop('hold', None)
if h is not None:
plt.hold(h)
try:
draw_networkx(G, pos=pos, ax=ax, **kwds)
ax.set_axis_off()
plt.draw_if_interactive()
except:
plt.hold(b)
raise
plt.hold(b)
return
def live(loopnum='all', corr=False, fitrange=None, hold=False, legend=True):
''' Enter infinite loop that keeps plotting from the most recent data '''
# passing hold=True will keep plots even when file changes
path = latest()
print('!Ctrl-C will set you free!')
washeld = plt.ishold()
if not washeld:
# clear current axis if not hold
plt.cla()
ccycle = plt.rcParams['axes.color_cycle']
if corr:
data = ppms(path).corr(fitrange=fitrange)
else:
data = ppms(path)
lines = data.plot(loopnum=loopnum)
# give inital xlim and ylim
try:
plt.autoscale()
maxH = np.max(np.abs(data.H[0]))
maxM = np.max(np.abs(data.M[0]))
xlimit = plt.xlim()
ylimit = plt.ylim()
# Change limit to +-max in data if that's bigger than autorange
if -maxH < xlimit[0] or maxH > xlimit[1] or -maxM < ylimit[0] or maxM > ylimit[1]:
plt.xlim((-maxH * 1.1, maxH * 1.1))
plt.ylim((-maxM * 1.1, maxM * 1.1))
except:
pass
timer = 1
while True:
data = ppms(path)
title = '!' + os.path.split(path)[1] + '!'
# get colors of last lines
colors = [l.get_color() for l in lines]
# clear the last lines
for l in lines:
l.remove()
plt.hold(True)
# replace lines with the updated ones
if corr:
lines = data.cplot(loopnum=loopnum)
else:
lines = data.plot(loopnum=loopnum)
# making sure lines don't change color, and additional lines get the
# right color ...
for l, c in zip(lines, colors):
l.set_color(c)
if len(lines) > len(colors):
try:
nextcolori = (ccycle.index(c[-1]) + 1) % len(ccycle)
nextcolor = ccycle[nextcolori]
lines[-1].set_color(nextcolor)
except:
# give up
pass
if legend:
plt.legend(loc='best')
# leave plot in previous hold state during pause
if not washeld:
plt.hold(false)
# display cute blinking ! ! around title
if timer % 2:
plt.title(title.replace('!',''))
else:
plt.title(title)
if not timer % 20:
# check again for latest filename
oldpath = path
path = latest()
if not (path == oldpath) and hold:
# redefine lines so the existing ones don't get clobbered
plt.hold(True)
lines = plt.plot()
timer += 1
plt.pause(2)
def plotPsych(result,
dataColor=[0, 105. / 255, 170. / 255],
plotData=True,
lineColor=[0, 0, 0],
lineWidth=2,
xLabel='Stimulus Level',
yLabel='Proportion Correct',
labelSize=15,
fontSize=10,
fontName='Helvetica',
tufteAxis=False,
plotAsymptote=True,
plotThresh=True,
aspectRatio=False,
extrapolLength=.2,
CIthresh=False,
dataSize=0,
axisHandle=None,
showImediate=True):
"""
This function produces a plot of the fitted psychometric function with
the data.
"""
fit = result['Fit']
data = result['data']
options = result['options']
if axisHandle == None: axisHandle = plt.gca()
try:
plt.axes(axisHandle)
except TypeError:
raise ValueError('Invalid axes handle provided to plot in.')
if np.isnan(fit[3]): fit[3] = fit[2]
if data.size == 0: return
if dataSize == 0: dataSize = 10000. / np.sum(data[:, 2])
if 'nAFC' in options['expType']:
ymin = 1. / options['expN']
ymin = min([ymin, min(data[:, 1] / data[:, 2])])
else:
ymin = 0
# PLOT DATA
holdState = plt.ishold()
if not holdState:
plt.cla()
plt.hold(True)
xData = data[:, 0]
if plotData:
yData = data[:, 1] / data[:, 2]
markerSize = np.sqrt(dataSize / 2 * data[:, 2])
for i in range(len(xData)):
plt.plot(xData[i],
yData[i],
'.',
ms=markerSize[i],
c=dataColor,
clip_on=False)
# PLOT FITTED FUNCTION
if options['logspace']:
xMin = np.log(min(xData))
xMax = np.log(max(xData))
xLength = xMax - xMin
x = np.exp(np.linspace(xMin, xMax, num=1000))
xLow = np.exp(
np.linspace(xMin - extrapolLength * xLength, xMin, num=100))
xHigh = np.exp(
np.linspace(xMax, xMax + extrapolLength * xLength, num=100))
axisHandle.set_xscale('log')
else:
xMin = min(xData)
xMax = max(xData)
xLength = xMax - xMin
x = np.linspace(xMin, xMax, num=1000)
xLow = np.linspace(xMin - extrapolLength * xLength, xMin, num=100)
xHigh = np.linspace(xMax, xMax + extrapolLength * xLength, num=100)
fitValuesLow = (1 - fit[2] - fit[3]) * options['sigmoidHandle'](
xLow, fit[0], fit[1]) + fit[3]
fitValuesHigh = (1 - fit[2] - fit[3]) * options['sigmoidHandle'](
xHigh, fit[0], fit[1]) + fit[3]
fitValues = (1 - fit[2] - fit[3]) * options['sigmoidHandle'](
x, fit[0], fit[1]) + fit[3]
plt.plot(x, fitValues, c=lineColor, lw=lineWidth, clip_on=False)
plt.plot(xLow,
fitValuesLow,
'--',
c=lineColor,
lw=lineWidth,
clip_on=False)
plt.plot(xHigh,
fitValuesHigh,
'--',
c=lineColor,
lw=lineWidth,
clip_on=False)
# PLOT PARAMETER ILLUSTRATIONS
# THRESHOLD
if plotThresh:
if options['logspace']:
x = [np.exp(fit[0]), np.exp(fit[0])]
else:
x = [fit[0], fit[0]]
y = [ymin, fit[3] + (1 - fit[2] - fit[3]) * options['threshPC']]
plt.plot(x, y, '-', c=lineColor)
# ASYMPTOTES
if plotAsymptote:
plt.plot([min(xLow), max(xHigh)], [1 - fit[2], 1 - fit[2]],
':',
c=lineColor,
clip_on=False)
plt.plot([min(xLow), max(xHigh)], [fit[3], fit[3]],
':',
c=lineColor,
clip_on=False)
# CI-THRESHOLD
if CIthresh:
CIs = result['confIntervals']
y = np.array([fit[3] + .5 * (1 - fit[2] - fit[3]) for i in range(2)])
plt.plot(CIs[0, :, 0], y, c=lineColor)
plt.plot([CIs[0, 0, 0], CIs[0, 0, 0]], y + [-.01, .01], c=lineColor)
plt.plot([CIs[0, 1, 0], CIs[0, 1, 0]], y + [-.01, .01], c=lineColor)
#AXIS SETTINGS
plt.axis('tight')
plt.tick_params(labelsize=fontSize)
plt.xlabel(xLabel, fontname=fontName, fontsize=labelSize)
plt.ylabel(yLabel, fontname=fontName, fontsize=labelSize)
if aspectRatio: axisHandle.set_aspect(2 / (1 + np.sqrt(5)))
plt.ylim([ymin, 1])
# tried to mimic box('off') in matlab, as box('off') in python works differently
plt.tick_params(direction='out', right='off', top='off')
for side in ['top', 'right']:
axisHandle.spines[side].set_visible(False)
plt.ticklabel_format(style='sci', scilimits=(-2, 4))
plt.hold(holdState)
if (showImediate):
plt.show()
return axisHandle
def plotPZ(H, color='b', markersize=5, showlist=False):
"""
Plots the poles and zeros of a transfer function.
Parameters
----------
H : tuple
transfer function in pzk or nd form
showlist : bool
if showlist is true, a list of the poles and zeros is superimposed
onto the plot.
Other Parameters
----------------
color : string or list of strings, optional
color or colors to plot the poles and the zeros (defaults to 'b'
meaning black)
markersize : real, optional
size of the markers used to represent the poles and the zeros
(defaults to 5)
Notes
-----
See `matplotlib` for info about color codes.
"""
pole_fmt = {'marker': 'x', 'markersize': markersize}
zero_fmt = {'marker': 'o', 'markersize': markersize}
if isinstance(color, list):
pole_fmt['color'] = color[0]
zero_fmt['color'] = color[1]
else:
pole_fmt['color'] = color
zero_fmt['color'] = color
if len(H) == 2:
H = tf2zpk(*H)
z = cplxpair(H[0])
p = cplxpair(H[1])
hold_status = plt.ishold()
plt.grid(True)
# Plot x and o for poles and zeros, respectively
plt.plot(p.real, p.imag, linestyle='None', **pole_fmt)
plt.hold(True)
if len(z) > 0:
plt.plot(z.real, z.imag, linestyle='None', **zero_fmt)
# Draw unit circle, real axis and imag axis
circle = np.exp(2j * np.pi * np.linspace(0, 1, 100))
plt.plot(circle.real, circle.imag, 'k')
plt.axis('equal')
limits = plt.axis()
plt.plot([0, 0], limits[1:3], 'k:')
plt.plot(limits[0:2], [0, 0], 'k:')
if showlist:
# List the poles and zeros
pp = p[p.imag >= 0]
y = 0.05 * (len(pp) + 1)
str_p = 'Poles:'
plt.text(-0.9,
y,
str_p,
horizontalalignment='left',
verticalalignment='center')
y = y - 0.1
for i in range(len(pp)):
if pp[i].imag == 0:
str_p = '$%+.4f$' % pp[i].real
else:
str_p = r'$%+.4f\pm \mathrm{j}%.4f$' % (pp[i].real, pp[i].imag)
plt.text(-0.9,
y,
str_p,
horizontalalignment='left',
verticalalignment='center')
y = y - 0.1
if len(z) > 0:
zz = z[z.imag >= 0]
y = 0.05 * (len(zz) + 1)
str_z = 'Zeros:'
plt.text(0,
y,
str_z,
horizontalalignment='left',
verticalalignment='center')
y = y - 0.1
for i in range(len(zz)):
if zz[i].imag == 0:
str_z = '$%+.4f$' % zz[i].real
else:
str_z = (r'$%+.4f\pm \mathrm{j}%.4f$' %
(zz[i].real, zz[i].imag))
plt.text(0,
y,
str_z,
horizontalalignment='left',
verticalalignment='center')
y = y - 0.1
plt.ylabel('Imag')
plt.xlabel('Real')
if not hold_status:
plt.hold(False)
