Hello all, My organization does not have IML, only base SAS. So I'm using a macro compute matrix multiplications. This macro works but I have another macro that does matrix multiplaction i number of times. When I run the following macro it only gives me a one period ahead matrix when it should give 6. Any thoughts? %macro loop (n=); %do i = 2 %to &n.; data _null_; i_minus_1= &i.-1; call symput( 'i_minus_1', i_minus_1); run; %if &i.=2 %then %do; %mat_product (in_data1 = m1 ,in_data2 = m1 ,out_data = m&i. ); %end; %else %do; %mat_product (in_data1 = m1 , in_data2 = m&i_minus_1., out_data= m&i.); %end; %end; %mend; %loop (n=6);
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