to setup; G5 X7 i$ J& x b4 m
clear-all 8 [ B, J3 L9 G. g- f$ V crt 52 A& v. n" [: T: D: W+ N' }
absolute-value 10 ' n: k. \) @5 N4 f
end2 p( A' ^+ \+ h7 I
to-report absolute-value [ number ]) Y T) A' C' |' @: z# s
ifelse number >= 0 [report number] [report (- number)]/ I& f2 U' {9 @$ O ~
end 3 R/ S; s- h9 Kcheck时出错
发表于 2008-4-16 09:40:56
楼主