range
Location: lib, 7 Lines
; Scheme 9 from Empty Space, Function Library ; By Nils M Holm, 2015 ; Placed in the Public Domain ; ; (range list) ==> list ; ; (load-from-library "range.scm") ; ; Return a list containing the minimal and maximal value of a set. ; (- (cadr (range set)) (car (range set))) is the statistical range ; of a set of samples. ; ; Example: (range '(1 2 3 4 5)) ==> (1 5) (load-from-library "mergesort") (define (range set) (let* ((vs (mergesort <= set)) (min (car vs)) (max (car (reverse! vs)))) (list min max)))