Cumulative standard deviation: Difference between revisions
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===Python: In a couple of 'functional' lines=== |
===Python: In a couple of 'functional' lines=== |
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<lang python>>>> myMean = lambda |
<lang python>>>> myMean = lambda MyList : reduce(lambda x, y: x + y, l) / float(len(l)) |
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>>> myStd = lambda |
>>> myStd = myStd = lambda myList : (reduce(lambda x,y : x + y , map(lambda x: (x-myMean(l))**2 , l)) / float(len(l)))**.5 |
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>>> |
>>> print myStd([2,4,4,4,5,5,7,9]) |
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2.0 |
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>>> print myStd(MyList) |
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</lang> |
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=={{header|REXX}}== |
=={{header|REXX}}== |
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