Features.populationStandardDeviation

Features.populationStandardDeviation(groupByFeature=None)

Returns a nimble object representing the population standard deviation along the features axis.

Parameters:

groupByFeature (identifier, None) – An optional index or name of the feature that makes the result grouped by the point values along the chosen feature axis.

Examples

>>> lst = [[0, 22, 2], [3, 22, 5]]
>>> X = nimble.data(lst)
>>> X.features.populationStandardDeviation()
<Matrix 1pt x 3ft
                                0      1      2
                            ┌────────────────────
 populationstandarddeviati─ │ 1.500  0.000  1.500
>