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braindump.py
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braindump.py
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import os
from collections import OrderedDict
import random
import numpy
from matplotlib import pyplot
class Brainwave(object):
def __init__(self, amplitudes, deltas):
self.amplitudes = amplitudes
self.deltas = deltas
def graph(self):
pyplot.figure(random.randint(1, 2 ** 10))
plotted, = pyplot.plot(
self.deltas,
self.amplitudes,
)
pyplot.xlabel('Time (ms)')
pyplot.ylabel(u'Voltage (\u03bcV)')
pyplot.show()
def __len__(self):
return len(self.amplitudes)
class Brain(object):
def __init__(self, brainwaves, regions=None):
regions = regions or (str(x) for x in range(len(brainwaves) + 1)[1:])
self.data = OrderedDict(zip(regions, brainwaves))
@staticmethod
def from_file(fpath):
waves = []
if not os.path.exists(fpath):
if os.path.exists(os.path.join('data', fpath)):
fpath = os.path.join('data', fpath)
data = numpy.genfromtxt(fpath, delimiter='\t')
deltas = [i * 4 for i in range(data.shape[0])]
for etrode in range(data.shape[1] - 1): # Discard reference node
waves.append(Brainwave(data[:, etrode], deltas))
return Brain(waves)
def montage(self, *electrodes):
electrodes = electrodes or self.data.keys()
sum = numpy.zeros(len(self.data['1']))
for electrode in electrodes:
brainwave = self.data[str(electrode)]
sum += brainwave.amplitudes
return Brainwave(sum / float(len(electrodes)), brainwave.deltas)
def graph(self, *electrodes):
electrodes = electrodes or self.data.keys()
for count, electrode in enumerate(electrodes):
pyplot.subplot(210)
plotted, = pyplot.plot(
self.data[str(electrode)].deltas,
self.data[str(electrode)].amplitudes,
)
pyplot.show()
if __name__ == '__main__':
brain = Brain.from_file('data/omar_note_A.txt')
brain.graph(1, 2, 3)
brain.montage(22, 23, 24).graph()