topic Re: How to use SAS to compute rank test for frequency table data? in SAS Procedures

How to use SAS to compute rank test for frequency table data?

deleted_user — Tue, 01 Mar 2011 11:24:17 GMT

Dear all,

I have met a big problem. I want to use SAS to compute rank test for frequency table data. But I don't konw how to write the code. Would you mind giving me a hand? Thanks a lot.

here is the data.

data tmpp1;
do gg=1 to 2;
do level=1 to 4;
input f@@;
output;
end;end;
cards;
2 20 20 8 0 18 32 0
;run;

Re: How to use SAS to compute rank test for frequency table data?

Doc_Duke — Tue, 01 Mar 2011 14:35:38 GMT

You are almost there. Look at the WEIGHT statement in PROC FREQ. In particular, the section on "imputting frequency counts" for your situation. The same approach can be used with PROC RANK.

With that many ties, the rank tests don't have as much power as they do for continuous data.

Re: How to use SAS to compute rank test for frequency table data?

Ksharp — Wed, 02 Mar 2011 05:40:47 GMT

>rank test for frequency

Do you mean Wilcoxon-rank-sum test?
then should use proc n1parm ?

Ksharp