- libname mylib "desktop";
- data mydata;
- length class0 class1 $20;
- do i=last to 1 by -1;
- set mylib.estimate nobs=last point=i;
- retain class0 "";
- pos=prxmatch("/ /",left(Parameter));
- if i=last then class0=substr(Parameter, pos);
- else class1=substr(parameter,pos);
- if i^=last then output;
- end;
- stop;
- drop pos;
- run;


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