cf.Index.variance

Index.variance()

The unweighted sample variance of the data array.

See also

maximum, mean, mid_range, minimum, range, sample_size, standard_deviation, sum

Returns

Data

The unweighted variance of the data array.

Examples:

>>> f.data
<CF Data(12, 73, 96): [[[236.512756348, ..., 256.93371582]]] K>
>>> f.variance()
<CF Data(): 514.611608515 K2>