Hi,
Thank you very much for the help. c[lower.tri(c,diag=FALSE)] works fine for me.
Thanks again.
Kind regards,
Ezhil
--- On Fri, 11/21/08, Anup Menon <[EMAIL PROTECTED]> wrote:
> From: Anup Menon <[EMAIL PROTECTED]>
> Subject: Re: [R] Extracting diagonal matrix
> To: [EMAIL PROTECTED]
> Cc: r-help@r-project.org
> Date: Friday, November 21, 2008, 9:16 PM
> 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
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained,
> reproducible code.
> >
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