Question

sas 用iml怎么实现 三个正态分布的零均值随机变量

Answer 1

proc iml;

call randseed(12345);

x = j(10,1,.);*用于存储随机数,10行;

m = j(10,3,.);*用于合并三个随机数;

call randgen(x,'NORMAL',0,1); m[,1] = x;

call randgen(x,'NORMAL',0,2); m[,2] = x;

call randgen(x,'NORMAL',0,3); m[,3] = x;

dist = {'A','B','C'};

print m[colname=dist];

quit;