least-squares ( xy-pairs -- alpha beta )

Vocabulary

math.statistics

Inputs

xy-pairs

an object

Outputs

alpha	an object
beta	an object

Definition

USING: kernel math math.statistics.private ;

IN: math.statistics

: least-squares ( xy-pairs -- alpha beta )
    r-stats [ 2dup ] 4dip [ (r) ] 2keep swap / *
    [ swapd * - ] keep ;