def plot(self, slice=None):
if slice == None:
slice = len(self.cutoffs)
plt.hlines(1,0,1)
plt.eventplot(self.cutoffs[:slice], orientation='horizontal', colors='b')
plt.show()
plt.pause(0.0001)
def display(self,
filename='../../results/fig3-learning-rule/protocol.pdf'):
"""
Plot pairing protocol
"""
try:
assert (len(self.spiketimes_pre) > 0
and len(self.spiketimes_post) > 0
) # check if spiketimes list are non-empty
plt.figure(figsize=(5, 2))
plt.eventplot(self.spiketimes_pre[:5],
colors=[custom_colors['bluish_green']],
lineoffsets=1,
linelengths=1,
lw=0.5,
label='pre')
plt.eventplot(self.spiketimes_post[:5],
colors=[custom_colors['sky_blue']],
lineoffsets=2,
linelengths=1,
lw=0.5,
label='post')
#plt.plot([0.5, 0.510], [3.5, 3.5], lw=0.5)
#plt.xlim([0,min(5, max(self.spiketimes_post[-1], self.spiketimes_pre[-1]))])
#plt.xticks([])
#plt.yticks([])
#sns.despine(left=True, bottom=True)
plt.savefig(filename)
plt.close()
except:
print('Empty spiketimes list. Nothing to plot.')
def raster_plot(event_mask):
for i,trace in enumerate(event_mask.T):
indices=np.where(trace==1)
plt.eventplot(indices,lineoffsets=i)
#mask=mask_spikes(data[600000:800000,65:130])
def inhExcCircuitRasterPLot(excSD,inhSD,nExc,nInh,timerange = (0.0,0.0)):
excSD = nest.GetStatus(excSD,keys = "events")
inhSD = nest.GetStatus(inhSD,keys = "events")
ets = excSD[0]['times']
esenders = excSD[0]['senders']
its = inhSD[0]['times']
isenders = inhSD[0]['senders']
allts = list(ets) + list(its)
senders = list(esenders) + list(isenders)
ts = [[] for n in range(nExc + nInh)]
for t, source in zip(allts,senders):
ts[source-1].append(t)
ts = list(filter(None, ts)) # take out non spiking neurons
eUniq = np.unique(esenders)
iUniq = np.unique(isenders)
print('Active neurons',len(eUniq) + len(iUniq))
colors = ['r' for n in range(len(eUniq))] + ['b' for n in range(len(iUniq))]
plt.figure()
plt.title('Raster plot of circuit activity')
plt.eventplot(ts,colors = colors)
plt.xlim(timerange[0],timerange[1])
plt.xlabel('Time (ms)')
plt.ylabel('Neuron')
def plotRasters(goal_starts, goal_stops, gs, col):
#the following finds trajectories starting from goal
#global spikes, cum_t, xsmooth
for trajectory, goal in enumerate(goal_starts):
ax = plt.subplot(gs[trajectory, col])
goal_stop = np.where(goal_stops > goal)[0]
if len(goal_stop) > 0:
rest_one = rests[goal]
rest_two = rests[goal_stops[goal_stop[0]]]
##traj_start and traj_stop are times of arrival at goals
traj_start = cum_t[rest_one[-1]]
traj_stop = cum_t[rest_two[0]]
#print("start {}; stop {}".format(traj_start, traj_stop))
lapspikes = [
spike for spike in spikes if traj_start < spike < traj_stop
]
moving, stopped = returnSpikeLocations(lapspikes, imoving)
#print("Trajectory duration: {}".format(traj_stop-traj_start))
raster = np.zeros(len(moving))
for i, spike in enumerate(moving):
raster[i] = x[spike]
plt.eventplot(raster, linewidths=5, color='k')
plt.xlim([0, 65])
plt.axis('off')
def raster(self,threshold,distance=50,plot=True):
#EXECUTE THE TRACE METHOD FIRST
#Function to get spike time index and raster plot
#Threshold is the minimum spike size to be recognized
#distance in points = minimum horizontal space between spikes
spike_times = []
time = self.trace[0][0] #report all sweeps on the first one for the time
if plot == True:
plt.figure()
plt.suptitle('Raster Plot')
plt.xlabel('Time (s)')
plt.ylabel('Sweep #')
plt.xlim(time[0],time[-1])
for i in range(len(self.block.segments)):
seg = self.trace[i][1] #the analogsignal
spikes, _ = signal.find_peaks(seg,height=threshold,distance=distance) #Spike Indexes
spike_idx = np.squeeze(spikes/self.sampling_rate) #Spikes times
spike_times.append(spike_idx)
if plot==True:
plt.eventplot(spike_idx,orientation='horizontal',lineoffsets=-i,linelengths=0.8)
return spike_times
def display_raster_with_eventplot(rasterfile, outfile, discard=0, binsize=50e-3, burst_detection_thr=16.e-3):
eventtimes, bursttimes, otherspiketimes, isolatedspiketimes = get_eventtimes(rasterfile, discard, burst_detection_thr)
N_neurons = 25
lineoffs = np.arange(1, N_neurons+1)
times, ER, BR = BRER_from_raster(rasterfile, binsize=binsize, tau=burst_detection_thr)
plt.figure(figsize=(3, 2.))
#plt.eventplot(otherspiketimes[:N_neurons], colors=['black'], lineoffsets=lineoffs, linelengths=1, lw=0.3)
plt.eventplot(eventtimes[:N_neurons], colors=[(0, 0.45, 0.8)], lineoffsets=lineoffs, linelengths=1, lw=0.5)
plt.eventplot(bursttimes[:N_neurons], colors=[(0.78, 0, 0)], lineoffsets=lineoffs, linelengths=1, lw=0.5)
#plt.eventplot(isolatedspiketimes[:N_neurons], colors=['black'], lineoffsets=lineoffs, linelengths=1, lw=0.3)
plt.xlim([1, 3])
plt.xticks(list(np.arange(1., 3.1, 1)))
#plt.ylim(ymin=0)
plt.yticks([1, N_neurons])
# plt.yticks([])
plt.gca().spines['top'].set_visible(False)
plt.gca().spines['right'].set_visible(False)
plt.ylabel('Neuron')
plt.xlabel('Time [s]')
ax1_tw = plt.gca().twinx()
ax1_tw.plot(times, 100 * BR / ER, color=custom_colors['red'], lw=2, alpha=0.5)
ax1_tw.plot(times, ER, color=custom_colors['blue'], lw=2, alpha=0.5)
ax1_tw.set_yticks([0, 25, 50])
ax1_tw.set_ylim([0, 60])
ax1_tw.set_xlim([1, 3])
#ax1_tw.legend(loc='upper right', bbox_to_anchor=(1, 1.1))
ax1_tw.set_ylabel('BP [\%], ER [Hz]')
#ax1_tw.spines['top'].set_visible(False)
plt.tight_layout()
plt.savefig(outfile)
plt.close()
def draw_event_plot(PCs_df, sample_1_size, description):
plt.eventplot(PCs_df.iloc[:sample_1_size, 0], colors='r')
plt.eventplot(PCs_df.iloc[sample_1_size:, 0], colors='b')
plt.title(f'PC1 event plot of two given samples \n ({description})')
fname = '.'.join(['event ' + description, Plotter.DEFAULT_IMAGE_EXT])
plt.savefig(os.path.join(PLOTS_DIR, fname))
plt.show()
def plot_graph(self, title, x_spike, y_spike):
post_spike = self.spikes
totalTime = self.time
timeStepSize = self.timestep
temp = np.arange(0, totalTime + timeStepSize, timeStepSize)
# Create 3 x numTimeSteps size 2d array filled with zeros
neuralData = []
neuralData.append(x_spike * temp)
neuralData.append(y_spike * temp)
neuralData.append(post_spike * temp)
# Draw a spike raster plot
colorCodes = np.array([[0, 0, 0], [1, 0, 0], [0, 1, 0]])
lineSize = [0.75, 0.75, 0.75]
plot.eventplot(neuralData, color=colorCodes, linelengths=lineSize)
plot.title(title)
# Give x axis label for the spike raster plot
plot.xlabel('Timesteps')
# Give y axis label for the spike raster plot
plot.ylabel('Neuron')
plot.yticks(np.arange(3), ['Post', 'Y', 'X'])
# Display the spike raster plot
plot.show()
def rasterPlot(neurons,
window=None,
col='black',
width=0.5,
height=1,
offsets=1):
if window is None:
last_spike = np.empty(len(neurons))
for i, n in enumerate(neurons):
last_spike[i] = n.as_units('s').index.values[-1]
window = np.array([[0, np.max(last_spike)]])
if type(window) is list: window = np.array([window])
window = nts.IntervalSet(window[:, 0], window[:, 1], time_units='s')
neurons_np = []
if isinstance(neurons, nts.time_series.Tsd):
neurons = [neurons]
for neuron in neurons:
neurons_np.append(neuron.restrict(window).as_units('s').index)
neurons_np = np.array(neurons_np, dtype='object')
plt.eventplot(neurons_np,
color=col,
linewidth=width,
linelengths=height,
lineoffsets=offsets)
plt.ylabel('Neurons')
plt.xlabel('Time(s)')
def plot_raster(neuralData,
linecolor=[0, 0, 0],
linesize=0.5,
x='trial#',
title_name='Spike raster plot'):
plt.eventplot(neuralData, color=linecolor, linelengths=linesize)
plt.title(title_name)
plt.ylabel(x)
def plot_events(firings, n, tot):
plt.title('Neuronal Firings')
plt.xlabel('Time')
plt.ylabel('Sample Number')
n_samples = firings[np.random.choice(
range(tot - 1), n)] # chooses n neurons to sample for plotting
plt.eventplot(n_samples)
plt.show()
def plot_spikes(net):
spikes = net.spikemon.spike_times
colors = ['r', 'g', 'b', 'm', 'k']
fig = plt.figure()
for i in range(net.N):
plt.eventplot(spikes[i], lineoffsets=i, colors=colors[i % len(colors)])
plt.ylim([-1, net.N])
return fig
def _plot_run(xs,
ys,
readouts,
spikes,
epoch,
total_epochs,
accuracy,
file_prefix=None):
"""
Only plots the first batch event
"""
def spikes_to_events(spike_list):
return [[x for x, spike in enumerate(ts) if spike > 0]
for ts in spike_list.T]
try:
import matplotlib.pyplot as plt
import matplotlib.gridspec as gridspec
# Setup grid
plt.title(f"Accuracy: {accuracy} (epoch {epoch}/{total_epochs}")
gridspec.GridSpec(4, 1)
plt.subplot2grid((4, 1), (0, 0), rowspan=3)
input_events = spikes_to_events(xs[0])
network_events = spikes_to_events(spikes[:, 0])
plt.eventplot(
network_events + input_events[::-1],
linewidth=1,
linelengths=0.8,
color="black",
)
yticks = [x for x in range(len(network_events))
] + [22.5, 27.5, 32.5, 37.5]
y_labels = [""] * len(network_events)
y_labels.append("Recall")
y_labels.append("Store")
y_labels.append("1")
y_labels.append("0")
plt.gca().set_yticks(yticks)
plt.gca().set_yticklabels(y_labels)
readout_events = readouts[:, :, 0].detach().reshape(-1, 2).softmax(1)
readout_sum = (readout_events[:, 0] -
readout_events[:, 1]).cpu().numpy()
plt.subplot2grid((4, 1), (3, 0), rowspan=1)
plt.gca().set_ylim(-1.1, 1.1)
plt.gca().set_yticks([-1, 0, 1])
plt.plot(readout_sum, color="black")
plt.tight_layout()
if file_prefix:
plt.savefig(f"{file_prefix}_{epoch}.png")
else:
plt.show()
plt.close()
except ImportError as e:
logging.warning("Plotting failed: Cannot import matplotlib: " + str(e))
def plotRasters(self, *args):
if args:
if 'sine' in args:
print('plotting spikes aligned to TTL (sine) phase:')
try:
self.unitsXspikeStimAligned
except:
self.unitsXspikeStimAligned = self.alignSpikesToSine()
spikes = self.unitsXspikeStimAligned
elif 'mod' in args:
print(
'plotting modulated spikes aligned to modulation-sine phase'
)
try:
self.unitsXspikesModAligned
except:
self.unitsXspikesModAligned = self.alignSpikesToSine('mod')
spikes = self.unitsXspikesModAligned
plt.figure()
LINE_LENGTHS = 0.8
plt.eventplot(
spikes,
linelengths=LINE_LENGTHS) #, linelengths = lineLengths)
plt.show()
print('done')
elif not args:
print('no argument provided --> plotting generic rasters')
### plot spikes over recording length (with TTL stimuli if present)
plt.figure()
numUnits = len(self.unitsXspikesLst)
####################### TO DO: auto generate appropriate line lengths and colorCodes for the given num of neurons
lineLengths = np.ones(numUnits)
colorCodes = np.array([[0, 0, 0], [1, 0, 0], [0, 1, 0], [0, 0, 1],
[1, 1, 0], [1, 0, 1], [0, 1, 1], [1, 0, 1]])
# plt.eventplot(self.unitsXspikesLst[0:8][:], color=colorCodes) #, linelengths = lineLengths)
plt.eventplot(
self.unitsXspikesLst[:][:]) #, linelengths = lineLengths)
try:
Y_OFFSET_FOR_TTLs = 2
sine_vals_offset = self.sine_vals - Y_OFFSET_FOR_TTLs
TTL_squ_vals_offset = self.TTL_squ_vals - Y_OFFSET_FOR_TTLs
TTL_vals_offset = TTL_values - Y_OFFSET_FOR_TTLs
plt.plot(self.TTL_squ_timesInSecs,
TTL_squ_vals_offset,
'o',
color='b')
plt.plot(self.sine_timesInSecs, sine_vals_offset, 'o', color='g')
plt.plot(TTL_times, TTL_vals_offset, 'o', color='r')
print('stimuli plotted as negative y values')
except:
print(
'WARNING: plotting TTL stimuli failed either because TTL were not present or due to an error'
)
plt.show()
def plot(base, filtered, rate_damaged_pkts, rate_lost_pkts):
plt.eventplot([base, filtered],
colors=[[0, 1, 0], [1, 0, 0]],
lineoffsets=[0, 0])
plt.text(
0, 1,
r'$rate\_of\_lost\_packets={},\ rate\_of\_damaged\_packets={}$'.format(
round(rate_lost_pkts, 2), round(rate_damaged_pkts, 2)))
plt.show()
def showRaster(net):
fig = plt.figure()
neuralData = []
for n in net.neurons:
neuralData.append(n.spikes)
plt.eventplot(neuralData)
plt.ylabel('Neuron')
plt.xlabel('Spiketime in ms')
plt.show()
def draw_raster(mea):
""" Draw a raster plot from MEA data """
fig = plt.figure()
for i in range(60):
plt.eventplot(mea[i], lineoffsets=i+0.5, colors=[(0, 0, 0)])
plt.xlim(0, mea.dur)
plt.ylim(0, 60)
return fig
def createPlot(dataset):
#dataset = np.swapaxes(dataset,0,1)
plot.eventplot(dataset, linestyles='solid')
#print(dataset)
plot.title("Spike raster plot")
plot.xlabel('Time')
plot.ylabel('Neuron')
plot.show()
def generate_plot_product_changes_over_time():
MAX_PROD_COUNT = 30
MAX_TIME = 400
events = []
events_fraud = []
for index, product in products.iterrows():
if index >= MAX_PROD_COUNT:
break
print(f'generating plot for {product["name"]}')
changes_product = changes[
(changes['record_id'] == index) &
(changes['table_column_ref'].str.contains('MST_PRODUCTS'))
]
x_times = []
event_times = []
event_times_fraud = []
for time in range(0, MAX_TIME):
changes_at_time = changes_product[changes_product['timestamp'] == time]
x_times.append(time)
count_changes = 0
count_changes_fraud = 0
if len(changes_at_time) > 0:
for _, change in changes_at_time.iterrows():
if change['is_fraud']:
count_changes_fraud += 1
event_times_fraud.append(time)
else:
count_changes += 1
event_times.append(time)
events.append(event_times)
events_fraud.append(event_times_fraud)
plt.figure(figsize=(24, 12))
plt.margins(0, 0)
plt.xlabel('Time [in days]')
plt.ylabel('Product ID')
plt.title(f'Price Changes on Products over Time')
plt.yticks(np.arange(0, MAX_PROD_COUNT))
plt.xticks(np.arange(0, MAX_TIME + 1, 30))
plt.hlines(range(0, MAX_PROD_COUNT, 10), 0, MAX_TIME, colors='#c7c7c7',
linestyles='dashed')
plt.vlines(cfg.SIMULATION_SPECIAL_EVENT_TIMES[0], -0.5, MAX_PROD_COUNT - 0.5, colors='r',
linestyles='dotted')
plt.eventplot(events, orientation='horizontal', linelengths=0.8, linewidths=2.0)
plt.eventplot(events_fraud, orientation='horizontal', linelengths=0.8, linewidths=2.0, colors='orange')
plt.draw()
plt.savefig(f'{cfg.STORAGE_BASE_PATH_PLOTS}\\misc\\activity_per_product.pdf', format='pdf', bbox_inches='tight')
plt.close()
def plotSpikeOutputs(populationID, neuronID):
x = [
float(x[0]) for x in eventContent
if populationID == x[1] and neuronID == x[2] and x[3] == '0'
]
y = [
int(neuronID) for x in eventContent
if populationID == x[1] and neuronID == x[2] and x[3] == '0'
]
plt.eventplot(x, lineoffsets=int(neuronID), linelengths=0.7)
def event_plot(df, title, **kwargs):
# Load in the values to a vertical event plot
plt.eventplot(df, orientation=kwargs.get('orientation'))
# Set the graph values and display
plt.title(title)
if kwargs.get('orientation') == 'vertical':
plt.gca().axes.get_xaxis().set_visible(False)
else:
plt.gca().axes.get_yaxis().set_visible(False)
plt.show()
def visualize_events(events, color, title, label):
plt.title(title)
maxi, mini, μ, med, σ, med_σ = get_desc_stats(events)
text = f'Max: {maxi:.3f}\nMin: {mini:.3f}\nMean: {μ:.3f}\nMed: {med:.3f}\nStDev: {σ:.3f}\nMAD: {med_σ:.3f}'
plt.gcf().text(0.02, 0.35, text, fontsize=14)
plt.hlines(1,0,1)
plt.gca().yaxis.set_major_locator(plt.NullLocator())
plt.eventplot(events, orientation='horizontal', colors=color, alpha = 0.5, label=label)
plt.subplots_adjust(left=0.25)
plt.legend()
plt.show()
def TimeSeq(labelList_5_1, Kopt_1):
listlabels = []
for i in range(Kopt_1):
listlabels.append(np.where(labelList_5_1 == i)[0])
plt.figure(1, figsize=(28, Kopt_1 + 3))
plt.eventplot(listlabels,
lineoffsets=1.01,
colors=colorsSeq[:Kopt_1],
linelengths=1,
linewidths=0.7)
plt.show()
def event(x, title, xlabel, ylabel, save_path):
plt.close()
plt.figure(figsize=(10, 8))
fig, ax = plt.subplots(1)
plt.eventplot(x)
plt.title(title)
ax.set_yticklabels([])
plt.xlabel(xlabel)
plt.ylabel(ylabel)
plt.savefig(save_path)
def PlotTrials(process=HomogeneousPoissonEfficient,
rate=40,
duration=1,
trials=20):
plt.figure(figsize=(8, 5), dpi=100)
NeuralResponses = []
for i in range(trials):
NeuralResponses.append(process(10, 1))
plt.eventplot(NeuralResponses, linelengths=0.5)
plt.xlabel('time [ms]')
plt.ylabel('trial number')
def _cluster_spike_waveforms_by_freq(self,
feature_mode='integral',
plot_hist=False):
"""
Clusters the found spikes into simple and complex, using a gmm_nc component GMM
It uses the maximum power in the lower region of the frequency spectrum of the
spike waveforms
"""
if feature_mode is 'integral':
power_feature = self._find_integral_powers()[0]
elif feature_mode is 'max':
power_feature = self._find_max_powers()[0]
else:
raise ValueError('feature_mode should be either integral or max')
gmm = GaussianMixture(self.cs_num_gmm_components,
covariance_type=self.cs_cov_type,
random_state=0).fit(power_feature.reshape(-1, 1))
cluster_labels = gmm.predict(power_feature.reshape(-1, 1))
cluster_labels = cluster_labels.reshape(power_feature.shape)
cs_indices = self.get_spike_indices()[cluster_labels == np.argmax(
gmm.means_)]
if plot_hist:
plt.figure()
# uniq = np.unique(ss.d_voltage[prang] , return_counts=True)
x = np.arange(np.min(power_feature), np.max(power_feature), 1)
if self.cs_cov_type == 'tied':
gauss_mixt = np.array([
p * norm.pdf(x, mu, np.sqrt(gmm.covariances_.flatten()))
for mu, p in zip(gmm.means_.flatten(), gmm.weights_)
])
else:
gauss_mixt = np.array([
p * norm.pdf(x, mu, sd)
for mu, sd, p in zip(gmm.means_.flatten(
), np.sqrt(gmm.covariances_.flatten()), gmm.weights_)
])
colors = plt.cm.jet(np.linspace(0, 1, len(gauss_mixt)))
# plot histogram overlaid by gmm gaussians
for i, gmixt in enumerate(gauss_mixt):
plt.plot(x, gmixt, label='Gaussian ' + str(i), color=colors[i])
plt.hist(power_feature.reshape(-1, 1),
bins=256,
density=True,
color='gray')
plt.eventplot(gmm.means_,
linelength=np.max(np.max(power_feature)))
plt.show()
self.cs_indices = cs_indices
def plot_raster(self):
self.raw_data = np.transpose(self.raw_data)
manipulated_data = []
for n in self.raw_data:
manipulated_data.append([d for d in n if d != 0])
plt.eventplot(manipulated_data,
color=self.colors,
linewidths=2,
linelengths=2,
lineoffsets=2)
plt.ylabel("neurons")
plt.xlabel("time")
plt.show()
def rasterPlot(spikesDict, Nuclei, Directory):
rasterList = []
if not os.path.exists(Directory + '/rasterPlot'):
os.makedirs(Directory + '/rasterPlot')
for neuron in spikesDict:
rasterList.append(spikesDict[neuron])
plt.figure(figsize=(40,15))
plt.eventplot(rasterList, linelengths = 0.8, linewidths = 0.6)
plt.title('Spike raster plot ' + Nuclei)
plt.grid()
plt.savefig(Directory + '/rasterPlot/' + 'RasterPlot_' + Nuclei + '.png')
def circuitRasterPlot(spikedetector,timerange = (0.0,0.0),colors = []):
plt.figure()
dSD = nest.GetStatus(spikedetector,keys = "events")
allts = dSD[0]['times']
senders = dSD[0]['senders']
ts = [[] for n in range(np.max(dSD[0]['senders']))]
for t, source in zip(allts,senders):
ts[source-1].append(t)
plt.title('Raster plot of circuit activity')
plt.eventplot(ts,colors = colors)
plt.xlim(timerange[0],timerange[1])
plt.xlabel('Time')
plt.ylabel('Neuron')
def raster(self, height_light_range=(1000, 2000), xlim=(0, 2500)):
colors1 = np.array([[1, 0, 0], [0, 1, 1], [0, 0, 1], [0, 1, 0],
[1, 0, 1]])
trials = sorted(self._trials, key=lambda trial: trial.category)
color_mapping = [colors1[trial.category - 1] for trial in trials]
trials_timestamps = [trial.trial_timestamps for trial in trials]
plt.eventplot(np.asarray(trials_timestamps) / 1000,
colors=color_mapping)
plt.axvspan(height_light_range[0],
height_light_range[1],
color='grey',
alpha=0.1)
plt.xlim(xlim[0], xlim[1])
plt.show()
def showRasterPlot(self, patternIdx, sampleIdx):
""" displays the MC output spike raster during the test phase for a
particular test sample (sampleIdx) belonging to a particular pattern(
patternIdx)"""
probes = self.allMCSomaProbes
numGammaPattern = self.numGammaCyclesTest + self.numGammaCyclesIdle
testDuration = self.gammaCycleDuration * numGammaPattern
beginLabel = self.trainDuration + (patternIdx * testDuration)
endLabel = beginLabel + testDuration
dataLabel = [
np.nonzero(probe.data[beginLabel:endLabel])[0] for probe in probes
]
beginSample = self.trainDuration + (self.numPatterns * testDuration)
beginSample += (patternIdx * self.numTestSamples + sampleIdx) * \
testDuration
endSample = beginSample + testDuration
dataSample = [
np.nonzero(probe.data[beginSample:endSample])[0]
for probe in probes
]
size = self.numMCs
fig, _ = plt.subplots()
plt.eventplot(positions=dataLabel,
colors='blue',
lineoffsets=np.arange(size),
linelengths=0.8)
plt.eventplot(positions=dataSample,
colors='red',
lineoffsets=np.arange(size),
linelengths=0.5)
plt.title("""MC Output Spike Raster (patternIdx={}, sampleIdx={})
""".format(patternIdx, sampleIdx))
plt.ylabel("#MC Neurons")
plt.xlabel("""Time ({} gamma cycles; gamma cycle={} timesteps)
""".format(self.numGammaCyclesTest, self.gammaCycleDuration))
xticks = [
self.gammaCycleDuration * i for i in range(self.numGammaCyclesTest)
]
plt.xticks(xticks)
legend_elements = [
Line2D([0], [0], color='blue', lw=1, label='Trained Pattern'),
Line2D([1], [0], color='red', lw=1, label='Test Pattern')
]
fig.legend(handles=legend_elements, loc='center right')
fig.tight_layout()
fig.subplots_adjust(right=0.9)
plt.show()
import nengo
import nengo_spinnaker
import numpy as np
model = nengo.Network()
with model:
source = nengo.Node(np.sin)
target = nengo.Ensemble(25, 1)
c1 = nengo.Connection(source, target)
p = nengo.Probe(target, 'spikes')
sim = nengo_spinnaker.Simulator(model)
sim.run(10.)
# Plot the results
from matplotlib import pyplot as plt
plt.eventplot(sim.data[p], colors=[[0, 0, 1]])
plt.xlabel("Time / s")
plt.ylabel("Neurons")
plt.show(block=True)
plt.subplot(3,1,2)
plt.plot(sim.data(model.t_probe)[1:], sim.data(in_p)[1:], lw=2)
plt.gca().spines['top'].set_visible(False)
plt.gca().spines['bottom'].set_visible(False)
plt.gca().spines['right'].set_visible(False)
plt.gca().yaxis.set_ticks_position('left')
plt.xlim(0, 1)
plt.xticks(())
plt.ylabel("Input signal")
plt.subplot(3,1,3)
color_cycle = plt.gca()._get_lines.color_cycle
colors = [next(color_cycle) for _ in xrange(a.n_neurons)]
plt.axis([0, 1, a.n_neurons-0.5, -0.5])
plt.eventplot(spikes, colors=colors)
plt.gca().spines['top'].set_visible(False)
plt.gca().spines['right'].set_visible(False)
plt.gca().xaxis.set_ticks_position('none')
plt.gca().yaxis.set_ticks_position('none')
plt.xlabel("Time (s)")
plt.ylabel("Neuron")
plt.tight_layout(pad=0.1, h_pad=0.1)
plt.savefig("../figures/nef_summary_enc.svg")
## Decoding
model = nengo.Model("Encoding")
in_ = nengo.Node(output=lambda t: t * 2 - 1)
in_p = nengo.Probe(in_, 'output')
plt.ylim(-1.2, 1.2)
plt.subplot(1, 3, 3)
plt.title("B ({} compartmental)".format(num_neurons))
plt.plot(sim.trange(), sim.data[B_probe])
plt.xlabel("t")
plt.gca().set_yticklabels([])
plt.xlim(0, 2 * np.pi)
plt.ylim(-1.2, 1.2)
plt.savefig(prefix + 'decoded.pdf')
dt = 1000.0
sns.set_style('white')
plt.figure(figsize=(18, 4))
plt.eventplot(
[np.where(x)[0] / dt for x in sim.data[A_spikes].T[:50, :] if np.any(x)],
colors=[(0, 0, 0, 1)], linewidth=1)
plt.title("Spike raster of A population (first 50 neurons)")
plt.xlabel("t")
plt.ylabel("Neuron index")
plt.xlim(0, 2 * np.pi)
plt.ylim(-0.5, 49.5)
plt.savefig(prefix + 'spikes_A.pdf')
dt = 1000.0
sns.set_style('white')
plt.figure(figsize=(18, 4))
spikes = [np.where(x)[0] / dt for x in sim.data[B_spikes].T if np.any(x)]
plt.eventplot(spikes, colors=[(0, 0, 0, 1)], linewidth=1)
plt.title("Spike raster of B population")
plt.xlabel("t")
ERP = np.mean(data_neuro['data'], axis=0).transpose()
sk_std = 0.01 if signal_type == 'spk' else 0.002
ERP = pna.SmoothTrace(ERP, sk_std=sk_std, ts=ts)
""" plot ERP in GM32 layout """
h_fig, h_axes = pnp.ErpPlot(ERP, ts=ts, array_layout=layout_GM32)
""" add laser onset tick """
[ylim_min, ylim_max] = plt.gca().get_ylim()
evt_tick_offset = (ylim_max+ylim_min)*0.5
evt_tick_length = (ylim_max-ylim_min)*0.9
for ch, ax_loc in layout_GM32.items():
plt.axes(h_axes[ax_loc])
evt_tick_color = ['limegreen'] if ch==laser_name_ch[name_evt] else ['peru']
evt_tick_alpha = 0.9 if ch==laser_name_ch[name_evt] else 0.7
plt.eventplot(ts_evt_ticks, lineoffsets=evt_tick_offset, linelengths=evt_tick_length, linewidths=0.5,
colors=evt_tick_color, alpha=evt_tick_alpha)
plt.ylim(ylim_min, ylim_max)
""" save fig """
plt.savefig('./temp_figs/laser_response_{}_{}_{}.png'.format(keyword_tank, signal_type, name_evt))
""" psth to stim onset """
def GetPSTH(tankname, signal_type='spk'):
[blk, data_df, name_tdt_blocks] = data_load_DLSH.load_data('x_.*{}.*'.format('grating'), tankname, tf_interactive=False,
dir_tdt_tank=dir_tdt_tank, dir_dg=dir_dg, sortname='')
def ctree_test(clust_str, var_str, space_str, rng, num_samples):
from data import UniformMixture as um
def gen_data(clust_str, var_str, space_str, rng, num_samples):
size_map = {'s': 1, 'm': 3, 'l': 5}
var_map = {'s': 1, 'm': 3, 'l': 5}
space_map = {'s': 1, 'm': 3, 'l': 5}
sizes = [[size_map[c] for c in clust] for clust in clust_str.split('-')]
sizes = [sum(csizes) for csizes in sizes]
spaces = [[space_map[c] for c in clust] for clust in space_str.split('-')]
spaces = [sum(cspaces) for cspaces in spaces]
variances = [[var_map[c] for c in clust] for clust in var_str.split('-')]
variances = [sum(cvars) for cvars in variances]
total_space = sum(spaces) + sum(variances)
total_size = sum(sizes)
ranges, probs = [], []
tspace = 0
for i in range(len(variances)):
space, var, size = spaces[i], variances[i], sizes[i]
tspace += space
start = (tspace * 1.0 / total_space) * rng
end = start + var * 1.0 / total_space * rng
slot = (start, end)
tspace += var
prob = size * 1.0 / total_size
ranges.append(slot); probs.append(prob)
dist = um(ranges, probs)
data = dist.sample(num_samples)
return data
def draw_ellipse(axes, cluster):
x = 0.5 * (cluster.data[0] + cluster.data[1])
rng = cluster.data[1] - cluster.data[0]
y = .25 + (cluster.level - 1) * 1.5 / (max_level - 1)
height = 1.5 / (max_level - 1)
ell = Ellipse(xy=[x,y], width=rng, height=height, angle=0)
axes.add_artist(ell)
ell.set_clip_box(axes.bbox)
ell.set_alpha(0.5)
ell.set_facecolor([0, 0, 1.0])
data = gen_data(clust_str, var_str, space_str, rng, num_samples)
ct = ClusterTree(data)
max_level, clusters = ct.max_level, ct.clusters
fig, ax = plt.subplots()
offset, length = [1], [2.0]
plt.hlines(0.1, 0, rng)
plt.xlim([0, rng])
plt.ylim([0, 2.0])
ev = plt.eventplot(data, lineoffsets=offset, linelengths=length, orientation='horizontal', colors='b')
ax.get_yaxis().set_visible(False)
for cluster in clusters:
draw_ellipse(ax, clusters[cluster])
plt.show()
two_arrays_to_be_plotted = np.array([EigenfrequenzenLuft_final, mitte])
# Plot
plt.clf()
# Titel
ax1 = plt.axes(frameon=False)
ax1.set_title ('Position des Mikrofons: Mitte')
# Kein Rahmen
ax1.set_frame_on(False)
ax1.get_xaxis().tick_bottom()
# keine y-Achse
ax1.axes.get_yaxis().set_visible(False)
# hinzugecheatete x-Achse
ax1.add_artist(mpl.lines.Line2D((150, 1250), (0, 0), color='black', linewidth=2))
plt.xlabel(r'$f \:/\: \si{\hertz}$')
# fancy eventplot für 1D-Darstellung mit Balken
plt.eventplot(two_arrays_to_be_plotted, colors=colors1, lineoffsets = lineoffsets, linelengths = linelengths, linewidth = linewidth)
plt.tight_layout(pad=0, h_pad=1.08, w_pad=1.08)
plt.savefig('build/mitte.pdf')
# Data
two_arrays_to_be_plotted = np.array([EigenfrequenzenLuft_final, rechts])
# Plot
plt.clf()
# Titel
ax1 = plt.axes(frameon=False)
ax1.set_title ('Position des Mikrofons: Rechts')
# Kein Rahmen
ax1.set_frame_on(False)
ax1.get_xaxis().tick_bottom()
# keine y-Achse
ax1.axes.get_yaxis().set_visible(False)
# Get OSN and PN label indices:
osn_ind_labels = [int(re.search('osn_.*_(\d+)', name).group(1)) \
for name in df_node.ix[osn_ind].name]
pn_ind_labels = [int(re.search('.*_pn_(\d+)', name).group(1)) \
for name in df_node.ix[pn_ind].name]
fmt = lambda x, pos: '%2.2f' % (float(x)/1e4)
with h5py.File('./data/olfactory_input.h5', 'r') as fi, \
h5py.File('olfactory_output_spike.h5', 'r') as fo:
data_i = fi['array'].value
data_o = fo['array'].value
mpl.rcParams['figure.dpi'] = 120
mpl.rcParams['figure.figsize'] = (12,9)
raster = lambda data: plt.eventplot([np.nonzero(data[i, :])[0] for i in xrange(data.shape[0])],
colors = [(0, 0, 0)],
lineoffsets = np.arange(data.shape[0]),
linelengths = np.ones(data.shape[0])/2.0)
f = plt.figure()
plt.subplot(311)
ax = plt.gca()
ax.xaxis.set_major_formatter(ticker.FuncFormatter(fmt))
plt.plot(data_i[:10000,0])
ax.set_ylim(np.min(data_i)-1, np.max(data_i)+1)
ax.set_xlim(0, 10000)
plt.title('Input Stimulus'); plt.ylabel('Concentration')
plt.subplot(312)
raster(data_o.T[osn_ind, :])
plt.title('Spikes Generated by OSNs'); plt.ylabel('OSN #');
ax = plt.gca()
ax.set_ylim(np.min(osn_ind_labels), np.max(osn_ind_labels))
