[R] How to calculate correlation of a vector in R?

C W tmrsg11 at gmail.com
Mon Nov 3 00:30:14 CET 2014

Hi list,
I have trying to calculate the covariance/correlation of three elements.  I
have vector say,

v <- c(700, 800, 1000)

I want to have a 3 by 3 correlation matrix, meaning cor(v1, c2), cor(v1,
c3), cor(v2, v3), etc...

So far I get,
> cor(v)
Error in cor(v) : supply both 'x' and 'y' or a matrix-like 'x'

> vvv <- cbind(v, v, v)
> cor(vvv)
  v v v
v 1 1 1
v 1 1 1
v 1 1 1

I am calculating squared exponential kernel as seen here.

Thanks a bunch,


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