[R] heatmap on pre-established hclust output?

[James W. MacDonald]

You just have to pass in the *dendrogram* to heatmap() or heatmap.2().

So if you have an hclust object for the rows and columns (called, say 
rhclust and chclust):

heatmap(datamatrix, Rowv = as.dendrogram(rhclust), Colv = 
as.dendrogram(chclust), otherargs)

Best,

Jim



Johannes Graumann wrote:
> Hi,
> 
> Can someone please guide me towards how to produce "heatmap" output from the
> output of "hclust" run prior to the actual "heatmap" call? I have some
> rather lengthy clustering going on and tweeking the visual output
> with "heatmap" recalculating the clustering every time is not feasible.
> 
> Thanks, Joh
> 
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-- 
James W. MacDonald, M.S.
Biostatistician
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
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