[R] How to make labels on my dendrogam look more clear and visible

[jon butchar]

On Thu, 27 Oct 2005 16:08:48 -0700 (PDT)
Srinivas Iyyer <srini_iyyer_bio at yahoo.com> wrote:

> Dear group, 
>  I have a matrix with readings for ~180 variables
> observed in 240 conditions. 
> 
> I am doing a hierarchical clustering method (hclust)
> by calculating eucledian distances among them. 
> 
> When I plot the dendrogram from hclust, all my
> variables at the end of the branches are cluttered. I
> cannot read them properly. 
> 
> I tried using :
> > x11(width = 100, height = 70, pointsize = 10)
> >plot(mydat.hcluster)
> 
> 
> and also by
> 
> >x11(width = 1000, height = 300, pointsize = 10)
> >plot(mydat.hcluster)
> 
> I could not make the dendrogram branches go wide and
> make variables at the end of braches more legible. 
> 
> 
> Can any one please help me to make a good diagram so
> that I can see the lables at the end of branches more
> clearly. 
> 
> Thank you. 
> 
> cheers
> Sri
> 


I don't know if it'll help, but I've grown fond of postscript graphs.

For example...

> postscript("mydendogram.ps", height=800, width=2000, pointsize=[????])
> plot(mydendogram)
> dev.off()

gives me very clear print, and then the ps2pdf app can turn it into a pdf for e-mailing or import to a presentation.

jon b