The values of a variable -var1 of my data set changes every month.
I am interested to create a macro variable for each unique value of the variable -Var1.....This time I have 5 different (unique) values of Var1. The macro variable &NumUni counts the number of unique values of Var1.
Here is my attempt!
The data set have contains a row for each unique value of Var1.
%MACRO LOOP;
%DO I=1 %TO %sysevalf(&NumUni);
DATA _NULL_;
SET Have;
IF _N_=&I THEN CALL SYMPUTX('X&I',Var1);
RUN;
%END;
%MEND LOOP;
In this case NumUni=5, so I should be creating 5 macro variables X1, X2,X3,X4 and X5.
There is some thing wrong with SYMPUTX('X&I',Var1);
Any help would be highly appreciated!
Thanks!
Hi,
Try this..you can also use count(name) into a macro variable.
%let NumUni=10;
proc sql;
select distinct name into :var1-:var&NumUni from sashelp.class;
quit;
Thanks,
Shiva
Hi,
Try this..you can also use count(name) into a macro variable.
%let NumUni=10;
proc sql;
select distinct name into :var1-:var&NumUni from sashelp.class;
quit;
Thanks,
Shiva
Thanks.
Your code seems correct, except macro variables only resolve inside double quotes not single quotes.
You also don't need macro code, here's a datastep solution that assumes you have a sorted dataset and there are variations to handle unsorted data but you don't have to know the number of records ahead of time.
data _null_;
set sashelp.class;
by name;
count=0;
if first.name then count+1;
call symput("x"||compress(count), name);
run;
%put &x1;
%put &x12;
Thanks all of you for your help.
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