[R] qbinom

David Winsemius dwinsemius at comcast.net
Sat Dec 1 01:00:05 CET 2012


On Nov 30, 2012, at 1:05 PM, jaybell wrote:

> sorry, I repost the question again  

Why? This was already answered.

> 
> a=c(0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9) 
> b=c(0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1) 
> cor(a,b)= -1 
> 
> pa=qbinom(a, 1, 0.5) 
> pb=qbinom(b, 1, 0.5) 
> cor(pa,pb)=-0.8
> 
> but when  
> pa=qbinom(a,10,0.5)
> pb=qbinom(b,10,0.5)
> 
> cor(pa,pb) becomes -1 again

What part of "plot the values" was difficult to understand?
> 
> --
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> 


David Winsemius, MD
Alameda, CA, USA



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