math variance for math

Returns the variance of a list of numbers or of each column in a table.

Signature

> math variance --sample

Parameters

• --sample (-s): calculate sample variance (i.e. using N-1 as the denominator)

Input/output types:

input	output
list<number>	number

Examples

Get the variance of a list of numbers

> [1 2 3 4 5] | math variance
2

Get the sample variance of a list of numbers

> [1 2 3 4 5] | math variance -s
2.5