Macro Resolution

[robertrao]

I have code1=146

what is the meaning of "&&code&j

when j=1 in a loop

How do I resolve it???

Thanks

[slchen]

&&code&j  first resolve to &code1, then &code1 resolve to 146.

[ballardw · Accepted solution]

With a loop SAS is looking for a series of macro variables &code1 &code2 &code3. The starting && tells SAS that something has to resolve first before looking for the actual value of the variable. So &   &code&j => &code1 .

And in your example when j=1 &&code&j should have a value of 146.

If you want to see the value:

%put &&code&j; shows the value in the log.