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


From   Ricardo Ovaldia <ovaldia@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Re: Fischer's exact when the expected counts are known
Date   Tue, 10 Feb 2009 05:52:03 -0800 (PST)

Thank you Steve. You are absolutely correct.

Ricardo.

Ricardo Ovaldia, MS
Statistician 
Oklahoma City, OK


--- On Mon, 2/9/09, Steven Samuels <sjhsamuels@earthlink.net> wrote:

> From: Steven Samuels <sjhsamuels@earthlink.net>
> Subject: Re: st: Re: Fischer's exact when the expected counts are known
> To: statalist@hsphsun2.harvard.edu
> Date: Monday, February 9, 2009, 1:55 PM
> 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.
> 
> -Steve
> On Feb 9, 2009, at 2:06 PM, Martin Weiss wrote:
> 
> > <>
> > 
> > -h tabi-
> > 
> > HTH
> > Martin
> > _______________________
> > ----- Original Message ----- From: "Ricardo
> Ovaldia" <ovaldia@yahoo.com>
> > To: <statalist@hsphsun2.harvard.edu>
> > Sent: Monday, February 09, 2009 8:00 PM
> > 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.
> >> 
> >> Thank you,
> >> Ricardo
> >> 
> >> 
> >> Ricardo Ovaldia, MS
> >> Statistician
> >> Oklahoma City, OK
> >> 
> >> 
> >> 
> >> 
> >> 
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