topic random number in ODS and Base Reporting

random number

deleted_user — Tue, 08 Jan 2008 14:43:42 GMT

Hi
I got 10 data sets which is having each 60000 obs. so i nees to get 100 random obs from each set . can you please let me know any one .

I got idea to use RANUNI but dont know how

thx

Re: random number

advoss — Tue, 08 Jan 2008 17:26:52 GMT

How about using PROC SURVEYSELECT?

proc surveyselect data=subscribers
out=subsamp100(drop=selectionProb samplingWeight)
method=srs /* simple random sample */
n=100 /* 100 per strata */
noprint
seed=1952 ;
*strata prodlvl1d /* stratified by product level 1 */;
run;

Re: random number

david2010 — Fri, 08 Feb 2008 02:54:31 GMT

There are many ways to do. This is my favorite

data in/view=in;
set input_data_set;
random=uniform(0);
run;

proc sort data=in out=output_data_set(obs=100);
by random;
run;