[R] WG: Re: NMDS and varimax rotation

[Gavin Simpson]

On Wed, 2008-09-10 at 14:24 +0200, Bernd Panassiti wrote:
> hello,
> thanks a lot for your help.
> 
> @ Stephen: In my opinion the proscrutes rotation is more used to 
> compare the 
> alignment of different ordination methods. But maybe I'm wrong.
> 
> @ Bill: Thanks for the comprehensive description. That was the 
> information I was 
> looking for.

Isn't Varimax rotation what is done in PCA? If so, metaMDS() does this
rotation by default (via postMDS() and it's 'pc' argument). So this
feature may already be implemented in the metaMDS wrapper to
MASS::isoMDS that you mention.

G

>  
> 
> Greetings,
> Bernd Panassiti
> 
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