新人求教一个随机数的问题

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我想写一个program，是要生成5个1到59之间的随机整数，不能重复，想不到让生成的随机数不重复的方法啊，或者说就算想到一些逻辑也不知道怎么写出来，望高人指点

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关键词：新人求教 随机数 Program 随机整数 gram

In Excel Data Analysis, you can generate random numbers continuously and uniformly distributed between 1 and 59

Also in Excel, you can specify the discrete probabilities for the integers between 1 and 59, generate random numbers you want!

I tested both methods and both worked!

Hope this helps

Here is a very simple solution which provides no duplicates within each run.

data a;
  do i=1 to 59; output; end;
run;

data b;
  set a;
  order=ranuni(-1);
run;

proc sort data=b ; by order; run;

proc print data=b(obs=5);
run;

shelf317 发表于 2013-9-28 05:40
In Excel Data Analysis, you can generate random numbers continuously and uniformly distributed betwe ...

Thank you for your help. But the program is asked to coded by SAS. It is my homework. :)

列出数字1-59。然后利用不放回式随机抽样抽出5个数即可。京剧

bobguy 发表于 2013-9-28 06:45
Here is a very simple solution which provides no duplicates within each run.

data a;

Thank you, the code works. What should I do if I want to generate 10 entries of 5 unduplicated integers follow unif(1,59)

jingju11 发表于 2013-9-28 07:08
列出数字1-59。然后利用不放回式随机抽样抽出5个数即可。京剧

不太明白，能具体一些么，刚学sas，不懂怎么用不放回式随机抽样

proc surveyselect

1. data quan;
   
2. do i=1 to 59;
   
3.    x=ranuni(1);         
   
4. output;
   
5. end;
   
6. run;
   
7. proc sort data=quan;
   
8. by x;
   
9. proc surveyselect data=quan out=quan1 method=srs sampsize=5;
   
10. run;

复制代码

data a;
do i=1 to 59;
output;
end;
run;
proc surveyselect data=a method=srs n=5 out=b seed=25070419;/*从1-59中随机一次性取出100个数，如果需要每次产生的数字不一样，改变seed后面的数字即可*/
run;
proc print data=b;
run;