Aug 20

r error: FEXACT error 7

Posted by admin on Friday Aug 20, 2010 Under Statistics

R Error: FEXACT error 7

Testing with small sample size, it is more preferable to use the Fisher’s Exact test than the Chi-square test.
fisher.test(counts, simulate.p.value=TRUE)

If you have too many rows or columns, you may get an error saying,
FEXACT error 7.
LDSTP is too small for this problem.
Try increasing the size of the workspace.

You can still do the test by adding “simulate.p.value=TRUE”
fisher.test(counts, simulate.p.value=TRUE)

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