standardize ( u -- v )

Vocabulary

math.statistics

Inputs

u	a sequence

Outputs

v	a sequence

Word description

Shifts and rescales the elements of u to have zero mean and unit sample variance.

Definition

USING: kernel math math.vectors ;

IN: math.statistics

: standardize ( u -- v )
    [ demean ] [ sample-std ] bi [ v/n ] unless-zero ;