Mercurial > ift6266

annotate scripts/stat_graph.py @ 595:da46a62ce402

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submitted JMLR pdf
author Yoshua Bengio <bengioy@iro.umontreal.ca>
date Tue, 05 Oct 2010 15:07:33 -0400
parents 227ebc0be7ae
children
rev   line source
450
c1df23c98eb6 New script to create histograms for datasets (for the report)
Arnaud Bergeron <abergeron@gmail.com>
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1 import matplotlib
c1df23c98eb6 New script to create histograms for datasets (for the report)
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2 matplotlib.use('Agg')
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3
c1df23c98eb6 New script to create histograms for datasets (for the report)
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4 from pylab import *
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5 from scipy import stats
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6 import numpy
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7 from ift6266 import datasets
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c1df23c98eb6 New script to create histograms for datasets (for the report)
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9 nistp_valid = stats.itemfreq(datasets.PNIST07().valid(10000000).next()[1])
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10 nistp_valid[:,1] /= sum(nistp_valid[:,1])
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11 nist_valid = stats.itemfreq(datasets.nist_all().valid(10000000).next()[1])
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12 nist_valid[:,1] /= sum(nist_valid[:,1])
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13 nist_test = stats.itemfreq(datasets.nist_all().test(10000000).next()[1])
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14 nist_test[:,1] /= sum(nist_test[:,1])
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15 nist_train = stats.itemfreq(datasets.nist_all().train(100000000).next()[1])
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16 nist_train[:,1] /= sum(nist_train[:,1])
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17
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18 xloc = numpy.arange(62)+0.5
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19
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20 labels = map(str, range(10)) + map(chr, range(65,91)) + map(chr, range(97,123))
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21
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22 def makegraph(data, fname, labels=labels, xloc=xloc, width=0.5):
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23 figure(figsize=(8,6))
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24 # clf()
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25 bar(xloc, data, width=width)
c1df23c98eb6 New script to create histograms for datasets (for the report)
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26 xticks([])
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27 for x, l in zip(xloc, labels):
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28 text(x+width/2, -0.004, l, horizontalalignment='center', verticalalignment='baseline')
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29 # xticks(xloc+width/2, labels, verticalalignment='bottom')
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30 xlim(0, xloc[-1]+width*2)
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227ebc0be7ae Add a graph for the NIST training set and normalize the values.
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31 ylim(0, 0.1)
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32
c1df23c98eb6 New script to create histograms for datasets (for the report)
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33 savefig(fname)
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34
c1df23c98eb6 New script to create histograms for datasets (for the report)
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35
c1df23c98eb6 New script to create histograms for datasets (for the report)
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36 makegraph(nistp_valid[:,1], 'nistpvalidstats.png')
c1df23c98eb6 New script to create histograms for datasets (for the report)
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37 makegraph(nist_valid[:,1], 'nistvalidstats.png')
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38 makegraph(nist_test[:,1], 'nistteststats.png')
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227ebc0be7ae Add a graph for the NIST training set and normalize the values.
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parents: 450
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39 makegraph(nist_train[:,1], 'nisttrainstats.png')