dema ( seq n -- newseq )

Vocabulary

math.finance

Inputs

seq	an object
n	an object

Outputs

newseq

an object

Definition

USING: kernel math.vectors sequences ;

IN: math.finance

: dema ( seq n -- newseq )
    [ ema ] keep [ drop 2 v*n ] [ ema ] 2bi
    [ length tail* ] keep v- ;