standard-deviator? ( object -- ? )

Vocabulary

rosetta-code.standard-deviation

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the standard-deviator class.

Definition

USING: classes.tuple.private kernel slots.private ;

IN: rosetta-code.standard-deviation

: standard-deviator? ( object -- ? )
    dup tuple?
    [ layout-of 7 slot \ standard-deviator eq? ] [ drop f ] if ;