topic Re: macro variable delimiter in SAS Data Management

macro variable delimiter

lizzy28 — Mon, 12 Mar 2018 19:12:55 GMT

Hi all,

I came across this question when trying to pull multiple datasets from the same data source. The question is how I can delimit the macro variables when the parameters are defined with multiple numeric values. Below is the example I have. When I tried to plug in the parameters with multiple values like idlist1 and idlist3, the macro cannot take it as the parameters have the same delimiter comma as that between the macro variables "datasetid" and "idlist".

%let idlist1=1111, 3333;

%let idlist2=2222;

%let idlist3=5555,6666,7777;

%macro pull_iddat(datsetid,idlist);

proc sql;

create table want_&datsetid. as

select *

from libdat.datset_a a

inner join libdat.datset_b b on a.joinid = b.joinid

and b.idvar in (&idlist.)

;quit;

%mend;

%pull_iddat(11,&idlist1.);

%pull_iddat(22,&idlist2.);

%pull_iddat(33,&idlist3.);

Can anyone help?

Thanks a lot!

Lizi

Re: macro variable delimiter

novinosrin — Mon, 12 Mar 2018 19:49:02 GMT

Do you wanna quote the macro call:

%pull_iddat(11,%bquote(&idlist1.));

Re: macro variable delimiter

Astounding — Mon, 12 Mar 2018 19:49:41 GMT

Ideally, you would create the original variables with a space as a delimiter:

%let idlist3=5555 6666 7777;

Then you would have no problem using &IDLIST3. as a macro parameter. Inside the macro you would have to create a second macro variable. Take 5555 6666 7777 and create a new macro variable with the value:

5555, 6666, 7777

Are your macro programming skills up to the task?

Re: macro variable delimiter

TomKari — Mon, 12 Mar 2018 19:54:41 GMT

This is an arcane topic called "macro quoting". I suggest you read up on it in the SAS help.

I'm not an expert, so there may be a better way to do it, but I believe this will work:

%let idlist1=%str(1111, 3333);
%let idlist2=%str(2222);
%let idlist3=%str(5555,6666,7777);

Tom

Re: macro variable delimiter

lizzy28 — Wed, 14 Mar 2018 13:23:08 GMT

Thank you all! I tried out all the three ways you guys showed, and they all work well. I would definitely look more into "macro quoting" SAS help.