topic Re: do while in SAS Programming

do while

deleted_user — Mon, 14 Dec 2009 13:04:50 GMT

I have a data like
patientid date dose
101 1/03/09 10mg

I want a output like this
patientid date dose
101 1/03/09 10mg
101 2/03/09 10mg
101 3/03/09 10mg
101 4/03/09 10mg
101 5/03/09 10mg
101 6/03/09 10mg

please tell me how to code this program

Re: do while

sbb — Mon, 14 Dec 2009 14:01:21 GMT

You can use the INTNX function to increment a value as you have shown using parameter arguments telling SAS how to increment. Though it's unclear what drives the number of output observations you want to generate, I would suggest a DO / END programming paragraph such as:

DATA ;
FORMAT MY_START_DATE MY_DERIVED_DATE MMDDYYS8. ;
MY_START_DATE = TODAY();
DO I=1 TO 6;
MY_DERIVED_DATE = INTNX('MONTH',MY_START_DATE,I);
OUTPUT;
PUTLOG _ALL_;
END;
STOP;
RUN;

Scott Barry
SBBWorks, Inc.

Suggested Google advanced search argument on this topic:

sas dates intnx site:sas.com Message was edited by: sbb

Re: do while

deleted_user — Tue, 15 Dec 2009 11:29:50 GMT

Dear sbb,

Thanks a lot for your kind information.But this coding does not work shows error that an invalid argument to INTNX .I could not able to find the site of INTNX function .Let me know the site. I shall grateful for early reply.

Thanks,
Regards,
Leena Message was edited by: Leena

Re: do while

Flip — Tue, 15 Dec 2009 13:05:07 GMT

http://support.sas.com/onlinedoc/913/docMainpage.jsp

Re: do while

deleted_user — Tue, 15 Dec 2009 14:09:44 GMT

this coding does not work. It shows invalid argument to INTNX.

Re: do while

sbb — Tue, 15 Dec 2009 14:29:57 GMT

Until you share "your version" of the code, we cannot comment on any type of error you might be getting. I typically test sample code before posting a reply. Suggest you reply with the SAS log output showing your SAS execution -- all of the code, not just a subset.

Scott Barry
SBBWorks, Inc.

Re: do while

sbb — Tue, 15 Dec 2009 14:30:48 GMT

Of course, you should do some desk-checking to verify the SAS NOTE/WARNING/ERROR you are getting first.

Scott

Re: do while

Flip — Tue, 15 Dec 2009 14:52:54 GMT

Leena;

That would indicate you are using the date text as a value, not a SAS date. There are several methods to convert text to SAS dates.
The SAS date is a numeric value.