Dear Phil,
I think that you will need generate a figure with your dendrogram, using
jpg() or png(), with as much pixels as possible, and see the output on
another program which allow you fly on the image.

x<-runif(2000)

png("c:\\temp\\test.png", 5000,500)
plot(x, cex=0.2, col="grey60")
dev.off()


Good luck

miltinho
br

2008/10/14 Phil Novack-Gottshall <pnovackg@westga.edu>

> Hi all,
>
> I have a related question concerning cluster analysis of large data sets.
>  In my case, the matrix is reasonably small for R to work with, but I have
> so many species (~2000) that it is not possible to read labels on the
> resulting dendrogram.  I imagine that using an ordination is a preferable
> method in this case, but I was wondering whether anyone had any
> recommendations for producing a very large, but still readable dendrogram.
>  (I've tried increasing the window size and shrinking cex.text, but this
> still isn't sufficient.)
>
> Cheers,
> Phil
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>  Phil Novack-Gottshall                        pnovackg@westga.edu
>
>  Assistant Professor
>  Department of Geosciences
>  University of West Georgia
>  Carrollton, GA 30118-3100
>  Phone: 678-839-4061
>  Fax: 678-839-4071
>  http://www.westga.edu/~pnovackg
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> _______________________________________________
> R-sig-ecology mailing list
> R-sig-ecology@r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
>

	[[alternative HTML version deleted]]

