Hello, I'm trying to create a block randomisation scheme. I've managed to create something very close to what I want, except I would like the subject var to be blank instead of the numbers 1-3. I'm a complete noob when it comes to SAS so any help is much appreciated. I use SAS studo v9.4 Many thanks, Dyllan Code: data _null_; x=round(ranuni(0)*1000000); call symput ('seed', x);title "3 arm trial randomisation scheme."; run; title "3 arm trial randomisation scheme."; proc plan; factors block=100 ordered subject=3 ordered/noprint; treatments treatment=3 random; output out=out treatment cvals=('A' 'B' "C"); run; proc print data=out noobs; var block treatment subject; run;
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