BookmarkSubscribeRSS Feed
SAS_inquisitive
Lapis Lazuli | Level 10

I wonder how this program executes?

 

data want;
	set have1;
	by var1 var2;

	do n = 1 to nobs;
		do m = 1 to mobs;
			set have2 point = n nobs = nobs;
			set have3 point = m nobs = mobs;

			output;
		end;
	end;
run;

 

2 REPLIES 2
Tom
Super User Tom
Super User

I would recommend making three datasets with just a few observations each and see for yourself.  Try putting a PUT statement before the OUTPUT statement. That is especially useful for looking at the values of M, N and _N_ which will not be in the WANT dataset.

 

 

Kurt_Bremser
Super User

This seems to do a complete cartesian join over all three datasets, in a very complicated and inefficient manner. Would need some test data to verify that.

sas-innovate-2024.png

Join us for SAS Innovate April 16-19 at the Aria in Las Vegas. Bring the team and save big with our group pricing for a limited time only.

Pre-conference courses and tutorials are filling up fast and are always a sellout. Register today to reserve your seat.

 

Register now!

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
  • 720 views
  • 1 like
  • 3 in conversation