SAS: Looping over column names -


i have data set following structure:

data account;    input index c1 c2 c3 c4 c5 c6 ;    datalines; 4 30 20 10 30 40 20  3 50 20 30 50 10 20 ; run;

in file, there 150+ columns of "c"-type containing numbers. in each line, sum c: columns index variable , put sum new column. in first line index variable 4, result should sum = c1 + c2 + c3 + c4. in second line, index 3, should sum = c1 + c2 + c3.

how can address columns this? have read them array first?

try this:

data want;   set account;   array vars c:;   sum=0;   i=1 index;      sum+vars(i);   end;   drop i;   run;

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