[R] Beta-Binomial Regression in R

[David Winsemius]

On Jul 28, 2012, at 3:28 PM, Anamika Chaudhuri wrote:

> Hi All:
>
> I am trying to generate Beta-Binomial data with regressors using R.  
> I have
> used the following code to generate Beta-Binomial data.  Now I want  
> to add
> a covariate to the equation. I would then like to use the simulated  
> data to
> run the Beta-Binomial model with covariates on it. Appreciate any  
> help.
>
> set.seed(111)
> k<-20
> n<-60
> x<-NULL
>
> p<-rbeta(k,3,3)# so that the mean nausea rate is alpha/(alpha+beta)
> for(i in 1:k)
> x<-cbind(x,rbinom(300,n,p[i]))

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>
> Thanks
> Anamika
>
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-- 

David Winsemius, MD
Alameda, CA, USA