@rstdev |

Row sample (d.f. corrected) standard deviations.

Square roots of the Pearson product moment sample variances for each row of the group, with d.f. correction.

Syntax: @rstdev(x)

x: group

Return: series

For each observation corresponding to a row in the group of series, compute the sample standard deviation,

where is the mean of the values for the observation.

Examples

show @rstdev(g

returns a linked series of sample standard deviations in the rows of group g.

Cross-references