SAS怎么用loop生成随机数？？

如题，
Finding the sampling distribution of a Poisson distribution. Using do-loops, generate 20 samples of size n= 15 from a Poisson Distribution (ranpoi) with a mean of 3.  Use the computer clock as the seed number. Find the mean of each of your samples. (You don't have to show me this values)

用do-loops生成20组随机数，每组15个数字，并且符合柏松分布，mean=3
另外seed用电脑的时间
试了半天不知道怎么分组？
望大神解答。。。

data samples;
seed1=date();
do sample = 1 to 20;
do i=1 to 15;
call ranpoi(seed1, 3, number);
output;
end;
end;
drop i seed1;
run;

sas那个石家庄人 发表于 2015-11-10 01:43
data samples;
seed1=date();
do sample = 1 to 20;

正解。就是把date()改成time()

computer clock as the seed number == seed(0). Jingju