@stdevp |

Population standard deviation (no d.f. adjustment).

Square root of population (non-d.f. adjusted) Pearson product moment variance.

Syntax: @stdevp(x, [s])

x: series, vector, matrix

s: (optional) sample string or object when x is a series and assigning to a series

Return: number

The population standard deviation is calculated as

where is the mean of .

For series calculations, EViews will use the current or specified workfile sample.

Examples

If x = @nrnd, then

= @stdevp(x)

returns a value near 1 in large samples.

Cross-references