[R] Heatmap.2 - eliminate cluster and dendrogram

[Peter Scacheri]

Thanks Matthias,

I tried that, but received the following error message:

Error in image.default(1:nc, 1:nr, x, xlim = 0.5 + c(0, nc), ylim = 0.5 +  :
         dimensions of z are not length(x)(+1) times length(y)(+1)


-Peter

At 10:18 AM +0200 5/15/08, Matthias Kohl wrote:
>Dear Peter,
>
>heatmap.2(z, dendrogram = "none", Rowv = FALSE, Colv = FALSE)
>
>should do what you want.
>
>Best,
>Matthias
>
>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
>>
>>______________________________________________
>>R-help at r-project.org mailing list
>>https://stat.ethz.ch/mailman/listinfo/r-help
>>PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>>and provide commented, minimal, self-contained, reproducible code.
>
>--
>Dr. Matthias Kohl
>www.stamats.de