[R] Heatmap.2 - eliminate cluster and dendrogram

[James W. MacDonald]

heatmap.2(z, col = greenred(100), dendrogram = "none", Rowv = FALSE)

NULL isn't one of the accepted values for the dendrogram argument. See 
?heatmap.2

Best,

Jim



Peter Scacheri wrote:
> Using the heatmap.2 function, I am trying to generate a heatmap of a 2 
> column x 500 row matrix of numeric values.  I would like the 1st column 
> of the matrix sorted from the highest to the lowest values - so that the 
> colors reflected in the first column of the heatmap (top to bottom) go 
> from red to green.
> 
> After sorting the matrix (z), I tried the following command, but the 
> data remains clustered.
> 
> heatmap.2((z),col=greenred(100),dendrogram=NULL,Rowv=FALSE)
> 
> I also tried the following, but the data remained clustered.
> 
> heatmap.2((z),col=greenred(100),Colv=1:ncol(z))
> 
> ANY IDEAS??
> Thanks so much,
> Peter
> 
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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
Ann Arbor MI 48109
734-647-5623