var(V)

Description:

Calculate the generalized variance of a vector (sequence).

Syntax:

var(V)

Note:

The function computes the generalized variance of vector V.

Option:

@s

Calculate sample variance of a vector by dividing by n-1.

@r

Calculate vector V’s generalized variance and then find the square root.

Parameter:

V

A vector; when it is an empty set or null, the function returns null.

Return value:

Numeric value

Example:

 

A

 

1

[4,8,12,21]

 

2

=var([3,8])

6.25

3

=var(A1)

39.6875

4

=var@s(A1)

52.916666666666664

5

=var@r(A1)

6.299801584177076