cumstd

Syntax

cumstd(X)

Please see Cumulative Window Functions (cum-functions) for the parameters and windowing logic.

Details

Cumulatively calculate the standard deviation of X.

Examples

$ x = [1,2,4,NULL,8];
$ cumstd(x);
[,0.707107,1.527525,1.527525,3.095696]

$ m=matrix(0.15 0.08 0.03 -0.14 -0.09, 0.2 -0.12 -0.16 0.08 0.16);
$ m;

$ cumstd(m);