R help - Jan 2010 - Likelihood Ratio Tests

Is there any package available in R to do the following hypothesis tests?

Testing the means of two Poissons (equivalent to the difference of two
proportions)
Testing the equality of two proportions from binomials
Testing the equality of proprtions of two negative binomials
(both conditional and unconditional tests).
No large sample approximation tests...I need exact tests
Thanks,

Jim

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Jim Silverton wrote:
> Is there any package available in R to do the following hypothesis tests?
> 
> Testing the means of two Poissons (equivalent to the difference of two
> proportions)
> Testing the equality of two proportions from binomials
> Testing the equality of proprtions of two negative binomials
> (both conditional and unconditional tests).
> No large sample approximation tests...I need exact tests
> Thanks,
> 
> Jim
Well, poisson.test and binom.test exist.  Wouldn't know what you're 
expecting for the negative binomial case (nor what you mean by the 
parenthesis re. Poisson means).

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