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List:       sas-l
Subject:    Re: changing %IF condition
From:       Nathan Temple <Nathan.Temple () KP ! ORG>
Date:       2012-06-28 21:35:21
Message-ID: OF5E204792.5D66CDF6-ON88257A2B.0076857A-88257A2B.0076961A () kp ! org
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Thanks, the "%unquote" was what I was looking for.

**************************
Nathan Temple
Sr. Data Consultant
Management Information & Analysis
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From:   "Fehd, Ronald J. (CDC/OCOO/OCIO/ITSO)" <rjf2@CDC.GOV>
To:     SAS-L@LISTSERV.UGA.EDU
Date:   06/28/2012 02:13 PM
Subject:        Re: changing %IF condition
Sent by:        "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>



> From: Nathan.Temple@kp.org
> Sent: Thursday, June 28, 2012 2:22 PM
> To: SAS-L@LISTSERV.UGA.EDU
> Subject: changing %IF condition
>
> Hello,
>
> I have a statement with a "%IF":
>
>
> proc syslin data=pred outest=outpred;
>  model runout_pdays =
>    %if &period. <= 3 %then %do; edf_days %end;
>    known_pdays;
>  run;
>
>
> This works fine but I would like do test different conditions within the
%IF,
> for example I would like to do:
>
> %let regr_cond=%nrquote(&period. <= 4);
>
> proc syslin data=pred outest=outpred;
>  model runout_pdays =
>    %if &regr_cond. %then %do; edf_days %end;
>    known_pdays;
>  run;
>
> But I get an error:
>
> ERROR: A character operand was found in the %EVAL function or %IF
> condition where a numeric
>        operand is required. The condition was: &regr_cond.
>
> How can I parameterize the %IF condition ?
>
> Thanks

%let regr_cond=%nrstr(&period. <= 3);

%let regr_cond=%nrstr(&period. <= 4);

*let regr_cond=%nrstr(&period. <= 5);

%if %unquote(&regr_cond.) %then %do; edf_days %end;

or

%let periodN = 3;

%let periodN = 4;

*let periodN = 5;

%if &Period. <= &PeriodN. %then %do;
    edf_days
    %end;

Ron Fehd  macro maven
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