topic Re: Compare Numbers between variable MACRO in SAS Programming

Compare Numbers between variable MACRO

Abud — Tue, 18 Feb 2014 21:03:51 GMT

Hi all,

I'm trying to compare two variables macro (price_trd vs max_price) however as the example below that's not happening....

Please someone could give me a little help ?

TK'S IN ADVANCED!

########## CODE BELOW #########

options mlogic mprint;

%let price_trd = 93.68;

%put &price_trd.;

%let max_price = 100.94;

%put &max_price.;

%macro test;

%if &price_trd. < &max_price %then %do;

%put Pass HERE;

%end;

%mend;

%test;

Tom — Tue, 18 Feb 2014 21:17:44 GMT

Need to use %SYSEVALF() to do floating point calculations, otherwise macro will attempt to use %EVAL() which only does integer math.

Reeza — Tue, 18 Feb 2014 21:19:19 GMT

Wrap the comparison in %sysevalf

E.G.

%if %sysevalf(&price_trd. LT &max_price) %then %do;

As always in the fine print (floating point arithmetic vs integer for %eval).