Passing Parameters in a SAS Macro -

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i writing macro school assignment pass name of airline macro, sure has character strings , " , ' missing, not run. please tell me doing wrong.

%macro select airine=;  proc means data=mytables.airtraffic noprint ; bosflights gt 0 , bospassengers gt 0; &airline; var bosflights bospassengers; output out=mytables.bosflightsairport sum (bosflights bospassengers)=  flights passengers;` run; %mend select; %select airline = envoy air;

you missing () in macro definition , call.

%macro select(airline=); ... %mend select; %select(airline = envoy air);

are passing in name of variable or value of variable? way have written passing in 2 variable names envoy , air want use group data in airtraffic dataset.

if meant parameter value used subset data assuming have variable named airline in dataset want body of macro.

proc means data=mytables.airtraffic noprint ;   bosflights gt 0 , bospassengers gt 0;   airline="&airline";   var bosflights bospassengers;   output out=mytables.bosflightsairport          sum(bosflights bospassengers)=  flights passengers   ;` run;

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