homework or not,

?rbinom

should be plenty.




On Wed, Jan 4, 2012 at 1:38 PM, lynn.tsai <vernal.lyn@gmail.com> wrote:

> Hello, I have the following code using rbinom, but I don't understand what
> *"+1"* means in the code. Could someone help? Thanks so much,
>
> > X1<-c("A","B")[rbinom(n,1,0.6)+1]
> > X2<-c("C","D")[rbinom(n,1,0.1)+1]
>
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