Thanks Jim. I think my previous posting wasn't clear enough. What I try to do is to compute the probability: f(2,1,3; 2/9, 1/6, 11/18, 6). (If we compute by hand, it is 0.1127). What is the R funtion for doing that?
 
I know for binomial tests, there is a function called binom.test. But for multinomial events, is there a similar function in R? 
 
thanks
Johnny

-----Original Message-----
From: jim holtman [mailto:jholtman@gmail.com]
Sent: Wednesday, February 22, 2006 5:33 PM
To: Li,Qinghong,ST.LOUIS,Molecular Biology
Cc: r-help@stat.math.ethz.ch
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 < Qinghong.Li@rdmo.nestle.com> 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]]

______________________________________________ 
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html





-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What the problem you are trying to solve? 


	[[alternative HTML version deleted]]


