Hi Ezhil,
Maybe this will help. There might be an easier way to do this but here is
one solution.
tril <- function(A)
{
A <- as.matrix(A)
cmats <- matrix(rep(1,length(A)),dim(A)[1],dim(A)[2])
upper.tri(cmats,diag=T)
cmats[upper.tri(cmats)] <- 0
out <- A*cmats
return(out)
}
tril(correlation.matrix)
will give you the output.
HTH
Best Regards
Anup
On Fri, Nov 21, 2008 at 7:28 AM, A Ezhil <[EMAIL PROTECTED]> wrote:
> Dear All,
>
> I have a correlation matrix of size 100 x 100 and would like to extract the
> diagonal matrix from it. I have used the for loop to store tha correlation
> values of the diagonal matrix. Is there a 'R way' of doing this?
>
> Thanks in advance.
>
> Kind regards,
> Ezhil
>
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