BookmarkSubscribeRSS Feed
ZZB
Obsidian | Level 7 ZZB
Obsidian | Level 7

%macro m(start=,end=);
proc expand data=A1 (keep=ID date AAA) out=A3 method=none;
%do i=&start %to &end;
by permno;
id date;
convert AAA = AAA_&i / transformout=(reverse MOVPROD &i reverse trimright &j);
%end;
run;
%mend m;
%m(start=2,end=50);

--------------------------------------------------

Here how to code j ? j=i-1

It is incorrect if I just use "&i-1" in the transformout. Thanks!

2 REPLIES 2
Kurt_Bremser
Super User

For integer calculations in macro code you need the %eval() macro function.

 

But do you really want to repeat the statements

by permno;
id date;
convert AAA = AAA_&i / transformout=(reverse MOVPROD &i reverse trimright &j);

49 times in one proc expand?

Kurt_Bremser
Super User

I guess you'd rather want to have this:

%macro m(start=,end=);
proc expand
  data=A1 (keep=ID date AAA)
  out=A3
  method=none
;
by permno;
id date;
%do i=&start %to &end;
convert AAA = AAA_&i / transformout=(reverse MOVPROD &i reverse trimright %eval(&i-1));
%end;
run;
%mend m;
%m(start=2,end=50);

Ready to join fellow brilliant minds for the SAS Hackathon?

Build your skills. Make connections. Enjoy creative freedom. Maybe change the world. Registration is now open through August 30th. Visit the SAS Hackathon homepage.

Register today!
How to Concatenate Values

Learn how use the CAT functions in SAS to join values from multiple variables into a single value.

Find more tutorials on the SAS Users YouTube channel.

Click image to register for webinarClick image to register for webinar

Classroom Training Available!

Select SAS Training centers are offering in-person courses. View upcoming courses for:

View all other training opportunities.

Discussion stats
  • 2 replies
  • 606 views
  • 0 likes
  • 2 in conversation