From maechler@stat.math.ethz.ch  Thu Jun 13 07:22:43 2002
From: maechler@stat.math.ethz.ch (maechler@stat.math.ethz.ch)
Date: Thu, 13 Jun 2002 08:22:43 +0200 (MET DST)
Subject: fisher.test FEXACT memory bug "should not occur" (PR#1662)
Message-ID: <200206130622.IAA16038@pubhealth.ku.dk>

This is a bad bug as reported by Robin Hankin,
it is still in "R-patched" ...

##- From: Robin Hankin <r.hankin@auckland.ac.nz>
##- To: r-help@stat.math.ethz.ch
##- Subject: [R] possum sleeping: thanks and fisher.test() FEXACT error
##- Date: Thu, 13 Jun 2002 16:46:26 +1200

## .....

## Example slighlty modified (MM)

d4 <- matrix(c(0, 0, 0, 0, 0,  0, 3, 0, 1, 0,  0, 0, 0, 0, 0,
               1, 0, 0, 0, 0,  1, 0, 0, 2, 0,  0, 0, 1, 0, 0,
               0, 1, 0, 1, 0,  4, 0, 2, 0, 0,  0, 1, 0, 0, 0,  0, 0, 0, 0, 0,
               0, 1, 0, 0, 2,  0, 0, 0, 2, 2,  0, 1, 0, 0, 0,
               0, 0, 1, 1, 0,  0, 0, 0, 0, 0,  0, 1, 0, 0, 0,
               1, 0, 0, 0, 2,  0, 0, 0, 3, 0,  0, 0, 0, 0, 1,  0, 0, 0, 0, 0,
               2, 0, 0, 0, 0,  0, 0, 0, 0, 0,  0, 0, 1, 0, 1,
               0, 0, 0, 0, 2,  0, 0, 0, 0, 8,  0, 0, 0, 3, 0,
               0, 0, 0, 0, 0,  0, 0, 0, 0, 0,  0, 0, 0, 0, 0,  0, 0, 0, 0, 1,
               0, 0, 1, 0, 0,  0, 0, 0, 0, 0,  2, 0, 0, 1, 0,
               0, 2, 0, 0, 0,  0, 2, 0, 0, 1,  3, 0, 0, 0, 0,
               0, 0, 0, 0, 0,  0, 0, 0, 0, 1,  0, 0, 1, 0, 0,  4, 0, 0, 0, 0),
             nr=50)

fisher.test(d4)
##- Error in fisher.test(alldata[, 2:5]) : FEXACT error 30.
##- Stack length exceeded in f3xact.
##- This problem should not occur.


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fisher.test FEXACT memory bug "should not occur" (PR#1662)
maechler@stat.math.ethz.ch