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8 lines
207 B
Python
8 lines
207 B
Python
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from math import sqrt
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def ave_error(arr):
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M = len(arr)
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assert (M>1)
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average = sum(arr)/M
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variance = 1./(M-1) * sum( [ (x - average)**2 for x in arr ] )
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return (average, sqrt(variance/M))
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