pearson-similarity ( a b -- n )

Vocabulary

math.similarity

Inputs

a	an object
b	an object

Outputs

n

an object

Definition

USING: kernel math math.statistics sequences ;

IN: math.similarity

: pearson-similarity ( a b -- n )
    over length 3 <
    [ 2drop 1.0 ] [ population-corr 0.5 * 0.5 + ] if ;