[R] correlation matrix in Hmisc

[Frank E Harrell Jr]

On Fri, 17 Oct 2003 16:36:47 +0200
Luca De Benedictis <debene at unimc.it> wrote:

> Dear all,
> I am trying to compute a  matrix of Pearson's `r' or Spearman's `rho' 
> rank correlation coefficients using rcorr (Hmisc) the following way:
> 
>  > mx<-rcorr(x, type="spearman")[1]

Instead of [1] use $r.  Or use the new cor() function builtin to R 1.8.

Frank

> 
> but then ...
> 
>  > is.matrix(mx)
> [1] FALSE
> 
> Even if  I use as.matrix the result is not better.
> What can I do?
> 
> Thank you all
> 
> Luca
> 
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---
Frank E Harrell Jr    Professor and Chair            School of Medicine
                      Department of Biostatistics    Vanderbilt University