[R] gaoshan

[David Winsemius]

On Jun 24, 2011, at 1:58 PM, wang peter wrote:

> aa file is：
> x  1 NA  2
> y  1 NA  3
>
> and r program is
>> aa<-read.table("aa",row.names=1)
>> bb<-cor(t(aa),method = "pearson",use="pairwise.complete.obs")
>> bb
>  x y
> x 1 1
> y 1 1
>
> i am confused why the pearson correlation coefficients between x and  
> y is 1

Because two points determine a line?

-- 
David Winsemius, MD
West Hartford, CT