topic Re: Mask percenatage in data step in SAS Programming

Mask percenatage in data step

RahulG — Fri, 09 Jun 2017 04:17:24 GMT

The below piece of code give me warning message.

I want to get rid of this warning, please suggest appropiate way to mask it.

%let k=XYZ.DT%DATE.;
data temp;
dsn="&k";
run;

Re: Mask percenatage in data step

ChrisNZ — Fri, 09 Jun 2017 04:57:55 GMT

You are calling a macro called DATE.

Does it exist and what does it do and what is the error message?

Re: Mask percenatage in data step

RahulG — Fri, 09 Jun 2017 06:08:27 GMT

My string has % in the text. I am not calling any macro.

Re: Mask percenatage in data step

ChrisNZ — Fri, 09 Jun 2017 06:18:48 GMT

What's the message?

I bet it's WARNING: Apparent invocation of macro DATE not resolved. which is self explanatory really.

You need function %str() to use some characters in a macro value. Look it up.

See rules #1 and #2.

Re: Mask percenatage in data step

Kurt_Bremser — Fri, 09 Jun 2017 07:02:28 GMT

I bet your log looks like this:

WARNING: Apparent invocation of macro DATE not resolved.
24         %let k=XYZ.DT%DATE.;
25         data temp;
26         dsn="&k";
WARNING: Apparent invocation of macro DATE not resolved.
27         run;

So what do you try to achieve by using the macro call(!) %date in the %let?

Re: Mask percenatage in data step

Astounding — Fri, 09 Jun 2017 07:31:25 GMT

It's difficult to remove both warnings. The simplest way would be if you are allowed to change the value of your macro variable:

%let k='XYZ.DT%DATE.';

data temp;

dsn=&k;

run;

Re: Mask percenatage in data step

RW9 — Fri, 09 Jun 2017 08:31:54 GMT

I am going to assume from your code there that DSN means that XYZ is the library name and DT%DATE. is the dataset name, and that your keeping this information for some reason. Personally I don't like data (dates in this case) in dataset names, as this complicates any further programming activity. I also question why you need a macro variable, and dataset to hold this information. Once you have created the libname referece XYZ then you will automatically have this information in sashelp.vtable, so you can simply your life by just doing:

libname xyz "...";

data temp;
  set sashelp.vtable (where=(libname="XYZ" and substr(name,1,2)="DT"));
run;

All macro language is is a way to create Base SAS code, it is not a replacement for Base SAS.

Re: Mask percenatage in data step

WarrenKuhfeld — Fri, 09 Jun 2017 12:02:58 GMT

%let k=%str(XYZ.DT%%DATE.);
data temp;
dsn=symget('k');
run;
proc print; run;

How about this?

Re: Mask percenatage in data step

slchen — Fri, 09 Jun 2017 12:06:54 GMT

If % is part of text, %nrstr is needed to mask it.

%let k=%nstr(XYZ.DT%DATE.);
data temp;
dsn="&k";
run;