topic How to repeat a macro for five levels of a variable in SAS Programming

How to repeat a macro for five levels of a variable

Emma_at_SAS — Wed, 05 May 2021 19:17:39 GMT

I want to produce these outputs for the 5 levels of a LEVELS variable (BY statement does not work for the next steps I have in my macro). I tried a %do statement by that was not working. May you please help me with this? Thanks

%macro do_sf(varname,levels);
%do i = 1 %to 5;
proc surveyfreq data = have VARHEADER = NAMELABEL nosummary;
    tables &varname /cl nofreq nostd; 
    WHERE &levels =&i;
 weight weight_var;
run;
%end;
%mend;
%do_sf(coffee_cons_level,city);

Re: How to repeat a macro for five levels of a variable

Kurt_Bremser — Wed, 05 May 2021 19:31:11 GMT

So the variable city has values from 1 to 5?

Please post your log.

Re: How to repeat a macro for five levels of a variable

Emma_at_SAS — Wed, 05 May 2021 19:36:52 GMT

Thank you, KurtBremser. Yes, the variable city has five levels from 1 to 5. My log repeats the following 5 times.

NOTE: The input data set is subset by WHERE, OBS, or FIRSTOBS. This provides a completely separate analysis of the subset. It does not provide a statistically valid subpopulation or domain analysis, where the total number of units in the subpopulation is not known with certainty. If you want a domain analysis, you should include the domain variables in the TABLES request.
NOTE: PROCEDURE SURVEYFREQ used (Total process time):
real time 0.02 seconds
cpu time 0.00 seconds

Re: How to repeat a macro for five levels of a variable

ballardw — Wed, 05 May 2021 22:23:12 GMT

That is not the complete log. It doesn't show anything about how many observations were used or other bits expected. You should also set OPTIONS MPRINT; before running the macro to see what is generated and get notes in context to more details.

Does your variable City actually have numeric values 1, 2, 3, 4 and 5? That is what you are asking for

with

WHERE &levels =&i;

If City is character you need quotes around the value such as: &levels= "&i." ;

Suggestion: Add your &levels variable to the TABLES statement, drop the whole bit of looping in a macro and use ODS OUTPUT to place all the desired output into a data set.

You could use (without a macro) to get analysis of these combinations.

proc surveyfreq data = have VARHEADER = NAMELABEL nosummary; tables coffee_cons_level * city /cl nofreq nostd; WHERE city in (1:5);/* if city is a numeric variable*/ /* Where city in ('1' '2' '3' '4' '5'); if city is character*/ weight weight_var; run;

If you have multiple variables you need to do such with the tables statement will accept syntax like

tables (a b c) *(x y z) .

Which will create output for a*x a*y a*z b*x b*y b*z c*x c*y c*z (nine tables in this case). Placing the output into a data set allows for later report writing or selecting the desired records for detailed examination.

So any looping or the macro may not be needed at all.

If your data set is of any significant size this sort of loop requires reloading the data set an may cause a serious performance issue, especially when you start calling it with multiple combinations of different variables.

Now:

"Not working" is awful vague.

Are there errors in the log?: Post the code and log in a code box opened with the "<>" to maintain formatting of error messages.

No output? Post any log in a code box.

Unexpected output? Provide input data in the form of data step code pasted into a code box, the actual results and the expected results. Instructions here: https://communities.sas.com/t5/SAS-Communities-Library/How-to-create-a-data-step-version-of-your-data-AKA-generate/ta-p/258712 will show how to turn an existing SAS data set into data step code that can be pasted into a forum code box using the "</>" icon or attached as text to show exactly what you have and that we can test code against.

Re: How to repeat a macro for five levels of a variable

Tom — Thu, 06 May 2021 00:14:04 GMT

Shouldn't you use DOMAIN analysis instead?

https://documentation.sas.com/doc/en/statug/15.2/statug_surveyfreq_details06.htm

Perhaps something like:

%macro do_sf(varname,levels);
proc surveyfreq data = have VARHEADER = NAMELABEL nosummary;
  tables &levels*&varname /cl nofreq nostd domain=row; 
  weight weight_var;
run;
%mend;
%do_sf(coffee_cons_level,city);