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comparison python/utils.py @ 75:46ec876ce90e

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changed name (same as in a library)
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Thu, 10 Feb 2011 20:34:16 -0500
parents 75cf537b8d88
children 64fde2b1f96d
comparison
equal deleted inserted replaced
74:d3e1a7cf3375 75:46ec876ce90e
21 result = 0. 21 result = 0.
22 for e, o in zip(expected, observed): 22 for e, o in zip(expected, observed):
23 result += ((e-o)*(e-o))/e 23 result += ((e-o)*(e-o))/e
24 return result 24 return result
25 25
26 class histogram: 26 class empiricalDistribution:
27 '''Class to represent a sample of a distribution for a continuous random variable 27 '''Class to represent a sample of a distribution for a continuous random variable
28 with the number of observations for each interval''' 28 with the number of observations for each interval'''
29 def __init__(self, categories, counts): 29 def __init__(self, categories, counts):
30 self.categories = categories 30 self.categories = categories
31 self.counts = counts 31 self.counts = counts