Hello, You can maybe adapt the following example, found in the SAS docs. It uses the /parmbuff option in the %macro statement. Regards.

* Example 3: Using the %MACRO Statement with the PARMBUFF Option The macro PRINTZ uses the PARMBUFF option to allow you to input a different number of arguments each time you invoke it: ;

%macro printz /parmbuff; %let num=1; %let dsname=%scan(&syspbuff,&num); %do %while(&dsname ne); proc print data=&dsname; run; %let num=%eval(&num+1); %let dsname=%scan(&syspbuff,&num); %end; %mend printz;

* This invocation of PRINTZ contains four parameter values, PURPLE, RED, BLUE, and TEAL although the macro definition does not contain any individual parameters: ;

data purple; do i= 1 to 2; output; end; run; data red; do i= 1 to 3; output; end; run; data blue; do i= 1 to 4; output; end; run; data teal; do i= 1 to 5; output; end; run;

%printz (purple, red, blue, teal);

* As a result, SAS receives these statements: ; PROC PRINT DATA=PURPLE; RUN; PROC PRINT DATA=RED; RUN; PROC PRINT DATA=BLUE; RUN; PROC PRINT DATA=TEAL; RUN;

On Mon, 8 Sep 2003 12:13:54 +0800, Zibao Zhang <zibaozhang@HOTMAIL.COM> wrote:

>Hi Leonora, > >Sorry, the subject should be "Macro variable as macro parameter?"! > >Maybe I haven't express my problem correctly, The problem is asked from my friend, he want use &MacrVar to indict the parameters in %macro test, and the &MacrVar. is generated from another macro. So now use %let to simply the problem. the code seems be like this: > >%let MacrVar =N1, N2; > >%macro test(&MacrVar.); > > data _null_; > Sum =(N1 + N2); > Put sum; > run; > >%mend test; > >%test(N1=10, N2=20); > >============ >Kind Regards, >Zibao Zhang, MD >