[R] clustering method

[Sean Davis]

On 12/30/05 5:27 AM, "vagua1 at mailbox.gr" <vagua1 at mailbox.gr> wrote:

> Hello r-helpers
> 
> I have a correlation matrix (either pearson or spearman) of 41 variables and i
> want to use it to construct a tree with agnes command (instead of using the
> distances). My problem is that at the height of the tree i see negative
> scaling also which is not desired. Is there any r-command that uses as a
> distance method the correlation estimates instead of distances
> (distances=dissimilarities, correlations=simmilarities) so that the height of
> the tree will be between 0 (zero) and 1 (one). Or simply, is there a way to
> transform the correlations in a proper way and to use the agnes command for
> example so that the height of the tree will be between 0 and 1?Thank you very
> much. 

1-correlation?

Sean