Features.variance

Features.variance(groupByFeature=None)

Returns a nimble object representing the variance 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.variance()
<Matrix 1pt x 3ft
              0      1      2
          ┌────────────────────
 variance │ 4.500  0.000  4.500
>