func3.sas

SAS for Windows统计分析系统教程,里面有源码

options nodate nonumber;
title 'Truncation functions';
data func3;
  input x1-x3;
  ceil1=ceil(x1);floor1=floor(x2);fuzz1=fuzz(x3);
  round1=round(x2);trunc1=trunc(1/5,3);
cards;
 2.7 1.6  2.99999999999999995
 1.2 3.1  3.00000000000000001
-2.3 5.61 4.10000000000000004
;
proc print;
run;