numpy.std()
numpy.std
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numpy.std(a, axis=None, dtype=None, out=None, ddof=0, keepdims=False)[source] -
Compute the standard deviation along the specified axis.
Returns the standard deviation, a measure of the spread of a distribution, of the array elements. The standard deviation is computed for the flattened array by default, otherwise over the specified axis.
Parameters: a : array_like
Calculate the standard deviation of these values.
axis : Non