[R] plot.hclust with lots of objects

[Michael Dondrup]

Dear all,

the default plotting method for hclust trees looks just fine for few
objects like in the 
example dataset. But when it comes to many objects (some 1000 - I'm
trying to visualize clustered microarray data) it renders a tree, that
one cannot inspect, because of overlapping text and lines. My question
is, is there a way or a plotting parameter for plotting a tree which is
wide enough to have all leaves separated and readable labels even for
that many objects? 
This would produce a very big image, so I think scrolling is essential.

I believe the answer is simple, but I'm unable to figure it out.

Thanks in advance
Michael
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