Hi,
I am simulating multiple datsets (and concatinating them using the proc append within the macro) using the same seed in the call streaminit but my answers are different. Could anyone suggest a solution
Are they any reasons why my answers my not be reproduced that I am unaware?
Data param;
pr_male=0.7;
pr_all=0.3;
run;
%macro sim (SSB1=, SSB2=, FFV1=, FFV2=,interv=);
Data have&interv ;
set param;
call streaminit(354);
interv=&interv;
do env=1 to 3;
all=rand('bernoulli', pr_all);
do id=1 to 100;
Male = rand('bernoulli', pr_male);
do t=1 to 2;
if t=1 then do;
SSB1 = &SSB1;
FFV1 = &FFV1;
end;
else if t=2 then do;
SSB2 = &SSB2;
FFV2 = &FFV2;
end;
output;
end;
end;
end;
run;
%mend sim;
%sim(SSB1=1, SSB2=0, FFV1=1, FFV2=0,interv=0);
%sim(SSB1=0, SSB2=1, FFV1=0, FFV2=0, interv=1);
thank you
Try it again. Make sure there are no errors or warnings in the log. My own test generates two identical streams for pseudo random variables all and Male.
Try it again. Make sure there are no errors or warnings in the log. My own test generates two identical streams for pseudo random variables all and Male.
@PGStats would you get the same streams if run on different system? I assume this is true but can't test at the moment.
Using streaminit is supposed to guarantee deterministic sequences, at least on a given system (hardware/version). But I wouldn't assume it does across systems.
Don't miss out on SAS Innovate - Register now for the FREE Livestream!
Can't make it to Vegas? No problem! Watch our general sessions LIVE or on-demand starting April 17th. Hear from SAS execs, best-selling author Adam Grant, Hot Ones host Sean Evans, top tech journalist Kara Swisher, AI expert Cassie Kozyrkov, and the mind-blowing dance crew iLuminate! Plus, get access to over 20 breakout sessions.
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.