I write one macro which works fine to split data into 2-subgroups.
Logic is 1) sort by target var 2) based on weight/wt, split into 2 subgroups.
BUT how to split into N-Subgroups with N as a parameter, say N=3 or 7?!
%macro bisect(ds, byvar, cutvar, note);
proc sort data=&ds.; by &byvar.; run;quit;
data &ds.;
set &ds.;
retain wt_sum;
wt_sum=coalesce(wt_sum,0)+&cutvar.;
run;quit;
data &ds.(drop=wt_sum);
set &ds.;
if wt_sum<=50 then ¬e.=1;
else ¬e.=0;
run;quit;
%mend;
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