- Statistical simulation of the correlation coefficient
with R-Project
> x1<- c(rep(15,4),rep(20,3),rep(25,1),rep(15,1),rep(20,4),rep(25,7));
> y1<- c(rep(5,4),rep(5,3),rep(5,1),rep(10,1),rep(10,4),rep(10,7));
> x2<- (x1-15)/5;
> y2<- (y1-5)/5;
> cor(x1,y1)
[1] 0.5411365
> cor(x2,y2)
[1] 0.5411365
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