topic proc npar1way wilcoxon rank sum test keeps running and never completes in Statistical Procedures

proc npar1way wilcoxon rank sum test keeps running and never completes

r1231 — Mon, 29 Aug 2016 22:08:53 GMT

When trying do a wilcoxon rank sum test on a small comma-delimited input text file (96 obs) in PROC NPAR1WAY, the program keeps running (like stuck in an endless loop) and never completes.

Re: proc npar1way wilcoxon rank sum test keeps running and never completes

PGStats — Mon, 29 Aug 2016 22:18:09 GMT

How do you transform your text file into an input dataset for npar1way?

Re: proc npar1way wilcoxon rank sum test keeps running and never completes

r1231 — Tue, 30 Aug 2016 00:00:03 GMT

not sure what you mean. I just read the comma-delimited text file with an infile statement. That's not a problem.

Re: proc npar1way wilcoxon rank sum test keeps running and never completes

Reeza — Tue, 30 Aug 2016 00:21:13 GMT

Without your code or log we can barely guess.

It could be as simple as not including a RUN or semicolon.

Please post the code you've used.

If it is a small dataset, the frequencies of the groups you're looking at may be required as well. If you're doing an exact calculation it may take a while, though SAS usually warns you about that.

Re: proc npar1way wilcoxon rank sum test keeps running and never completes

r1231 — Tue, 30 Aug 2016 01:21:11 GMT

Thanks! I removed the exact statement and the code ran fine.

Re: proc npar1way wilcoxon rank sum test keeps running and never completes

PGStats — Tue, 30 Aug 2016 01:22:29 GMT

If you have an EXACT statement, add option MC

EXACT WILCOXON / MC N=100000;