Talk:Permutation test

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Revision as of 16:08, 1 February 2011 by Rdm (talk | contribs)

Difference in results?

I see that the Tcl and Ursala code seem to be calculating different results. How can this be the case? I've been careful to check that the number of cases generated in the Tcl code is the correct one (92378 for selecting 10 from 19) so I think that's correct... –Donal Fellows 14:48, 1 February 2011 (UTC)

Shouldn't this be all combinations instead of all permutations? What difference does the order of members within the control or treatment group make (other than extra computation time)? --Rdm 16:08, 1 February 2011 (UTC)
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