[BioC] zooming in a cluster tree

[Thomas Girke]

For this, you may want to explore the dendrogram documentation with 
'?dendrogram'.

In your example, the zooming can be achieved by changing the xlim/ylim 
values in the following plotting command:  

plot(as.dendrogram(hc_samples), xlim = c(1,20), ylim = c(1,50))

Thomas

On Sun, May 03, 2009 at 11:48:09PM +0530, dhaarini s wrote:
> Hi all!
> I am new to R. I have clustered the samples (columns) using hclust function.
> Since there are a huge number of samples, 291, the sample names in the
> cluster tree is cluttered. Please suggest if i can zoom the cluster plot or
> what else can I do?
> Please help!
> I used the following steps to cluster:
> >dist_sample <- as.dist(1-cor(exprs(eset))
> >hc_samples <- hclust(dist_sample, method="average")
> >plot(hc_samples)
> 
> Thanks in advance!
> Regards,
> S.Dhaarini
> 
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