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From |
Mike Lacy <Michael.Lacy@colostate.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Re: Fischer's exact when the expected counts are known |

Date |
Tue, 10 Feb 2009 10:13:33 -0700 |

>From: Ricardo Ovaldia <ovaldia@yahoo.com> >Subject: st: Fischer's exact when the expected counts are known > >Dear all, > >Is there a command or a way to trick -tabulate- to perform a Fisher's >exact test when the expected counts are known. > >For example the observe counts are: >30 20 15 35 > >Under the null the expected counts are >20 30 30 20 > >I want to test this using a fisher exact test. > ------- > >Date: Mon, 9 Feb 2009 14:55:21 -0500 >From: Steven Samuels <sjhsamuels@earthlink.net> >Subject: Re: st: Re: Fischer's exact when the expected counts are known > >Richard has multinomial data: four categories with expected counts. >There is no such thing as a Fisher Exact Test for multinomial data; >Fisher's test is for two-way tables, and tests the hypothesis of >independence. Richard wants to test the fit of the observed data to >the expected. He needs Ben Jann's -mgof- (from SSC) or the packages >listed at the bottom of its help page. -mgof- uses simulation to >approximate the exact distributions of the Pearson Chi Square and >likelihood-ratio goodness-of-fit tests. >

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