07-11-2014 10:15 AM
Yeah. I think so. and change your data structure firstly. But your cell freq better all have value . what is your whole sample data.
table treatment*category /fisher;
07-14-2014 10:22 AM
07-14-2014 10:49 AM
I think Fisher's Exact test does not depend on large-sample distribution assumptions, and appropriate even for small sample sizes as well. Please correct me if I am wrong, is it expected cell frequency or obervations per row that should be at least 5?
07-14-2014 11:07 AM
Sorry, what I wrote was easily misinterpretable, and wrong in the details anyway. For a balanced design, you need at least three observations per row, completely separated by columns to obtain significance using Fisher's Exact Test Nothing to do with asymptotic assumptions or expected cell frequencies.
input a b wt;
0 0 0
0 1 3
1 0 3
1 1 0
proc freq data=one;
Note that if you redistribute the 6 obs or have fewer total observations, no significance can be found.