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if-statementsasdatasetexecute

How to conditioning a data step in SAS

I'm inside a big call execute and I have to do a data step only if a flag variable is 0 and not 1. That is, if flag=1 then the data step begin, otherwise not. So I should use IF outside of a macro and outside a data step. How can I fix?

thanks in advance

Solution

  • You need to use macro language, and macro versions of if and then and so on. Try this:

    %let flag = ; 

*or method/logic such as :into or other to set macro value to 1 or 0;

%macro pre_run_check();
    %if &flag = 1 %then %do;

    *CODE HERE;

    %end;
%mend;

%pre_run_check();

    28/07/2016: czechraisin edited