[R] Fishers exact test

Peter Dalgaard BSA p.dalgaard at biostat.ku.dk
Thu Feb 18 15:05:11 CET 1999

"Simon  Bond" <bond at graylab.ac.uk> writes:

> Dear All,
> R keeps crashing when I use fisher.test . I'm using it on 2 x c (where c
> varies from 2 to 7) table, the total number of counts is 918. It does work
> with some of the categorisations of the data, but it's failing on those
> categorisations where the Chi-squared approximation breaks down due to
> small expected counts. A conglomeration of categories is not feasible.  
> Is my memory too small ( if so which one of the parameters nsize, vsize
> needs changing) or do I need to change the parameter for 'working space'
> within the command? Or is it soemthing else?

An example where it crashes, and some indication of your system and
the version of ctest would be helpful....

   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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