[R] How to get multiple Correlation Coefficients

David Barron mothsailor at googlemail.com
Thu Oct 19 12:53:37 CEST 2006


The problem is that in the expression  polychor(vars[i], vars[j]),
vars[i] and vars[j] refer to the names of the variables, not the
variables themselves.  So, use sdi[,i] and sdi[,j] instead.

On 19/10/06, Kum-Hoe Hwang <phdhwang at gmail.com> wrote:
> Hi
>
> I have used a polycor package for categorical correlation coefficients.
> I run the following script. But there were no results.
>
> Could you tell me how to correct the script?
>
> Thanks in advance,
>
> vars <- names(sdi)
> for (i in 1:length(vars)) {
> for (j in 1:length(vars)) {
>   paste(vars[i]," and ", vars[j])
>   polychor(vars[i], vars[j])
>   # corr
> }
> }
>
>
>
> --
> Kum-Hoe Hwang, Ph.D.Phone : 82-31-250-3516Email : phdhwang at gmail.com
>
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>


-- 
=================================
David Barron
Said Business School
University of Oxford
Park End Street
Oxford OX1 1HP



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