referencing a variable from another dataset in a macro

[BenBrady]

I have a macro that looks like this:

%macro csv(chart);

data want;
set have;
where chart_code = "&chart.";
run;

%mend csv(chart);

The macro works when I input a value into chart. However I want to run this macro through the chart_code variable from a data set that looks like this:

Chart_code

test13
test3
test4
test6
test9

etc

i.e run the macro through test13, test 3 and so on.

[Kurt_Bremser · Accepted solution]

Use call execute():

data _null_;
set control_dataset;
call execute('%csv(' !! strip(chart_code) !! ');');
run;

Note the use of single quotes to prevent premature resolution of the macro. If the macro contains macro statements, use %nrstr( to mask the macro trigger so that the execution of the macro is delayed until the contained data/proc step code can execute.