I tried to obtain a p-value for a 2 x 2 contingency table in which one row sums to zero. I used PROC FREQ along with the exact fisher option. The following warning was generated: "Row or column sum zero. No statistics computed for this table." For a Fisher's Exact test, the p-value should be calculated as 1 here. Can anyone tell me why SAS won't produce results when it can be calculated? (I am able to get results for other contingency tables without zero sum rows, so my code is correct.)
... View more