Qinghong:
R Has an extensive Help system which you should learn to use.
help.search('multinomial')
?Multinomial
Jim: sample() is wrong -- it gives random samples, not probabilities.
-- Bert Gunter
Genentech Non-Clinical Statistics
South San Francisco, CA
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of jim holtman
> Sent: Wednesday, February 22, 2006 3:33 PM
> To: Li,Qinghong,ST.LOUIS,Molecular Biology
> Cc: [email protected]
> Subject: Re: [R] multinomial test
>
> ?sample
>
> sample(1:3, 6, TRUE, prob=c(2/9, 1/6, 11/18))
>
>
>
> On 2/22/06, Li,Qinghong,ST.LOUIS,Molecular Biology <
> [EMAIL PROTECTED]> wrote:
> >
> > Hi All,
> >
> > What is the R function for computing multinomial distribution, e.g.
> > f(2,1,3; 2/9, 1/6, 11/18, 6)?
> >
> > That is, a total of 6 trials, event 1's p1=2/9, x1=2, event
> 2's p2=1/6,
> > x2=1, and event 3's p3=11/18, x3=3.
> >
> > thanks,
> > Johnny
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
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> >
>
>
>
> --
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
>
> What the problem you are trying to solve?
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
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> PLEASE do read the posting guide!
> http://www.R-project.org/posting-guide.html
>
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