R help - May 2004 - heatmap for gene clustering?

I am using "heatmap" to cluster genes in microarrays. It works fine
with
100~200 genes.
But when I draw a heatmap with 600 genes, I can't read a clustering tree 
well.
Maybe I will be able to read it by dividing it into several subtrees using a 
function such as "subtree".
I found "subtree" in Splus, but not in R. Is there a similar function
in R?
Or, without it, how can I solve this problem?

HJ

_________________________________________________________________

Look into ?cutree.

Sean

On 5/5/04 1:29 PM, "Hyung Cho" <hj4cho at msn.com> wrote:
> 
> I am using "heatmap" to cluster genes in microarrays. It works
fine with
> 100~200 genes.
> But when I draw a heatmap with 600 genes, I can't read a clustering
tree
> well.
> Maybe I will be able to read it by dividing it into several subtrees using
a
> function such as "subtree".
> I found "subtree" in Splus, but not in R. Is there a similar
function in R?
> Or, without it, how can I solve this problem?
> 
> HJ
> 
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