Yes. This is Wikipedia reference. https://en.wikipedia.org/wiki/Kendall%27s_W Also http://core.ecu.edu/psyc/wuenschk/SAS/SAS-Programs.htm provided a sample code to work around. called Kendall-patches -- Kendall's Coefficient of Concordance. Basically, it is trying to using an already ranked data in Proc Freq. So general association (I guess it is based on Pearson's correlation) output now is equivalent to Kendall's W. By following the work around, I now first use the Proc rank, then apply Proc Freq to do the test. Please let me know if this clarified. Kind Regards Zeno
... View more