3.5列联表分析

一 .计算频率

proc freq data=data-set-name;

tables var1;

run;

/* 输出结果：frequency，percent，cumulative frequency，cumulative percent */

 二.制交叉表cross tabulation

proc freq data=data-set-name;

tables x*y;

run;

/*输出结果frequency,perent,row percent,column percent */

/*  可以用nopercent,norow,nocol 取消 */