Re: [R] heatmap.2 in gplots package

From: Sean Davis <sdavis2_at_mail.nih.gov>
Date: Thu 23 Feb 2006 - 04:55:25 EST

On 2/22/06 12:09 PM, "Akkineni,Vasundhara" <vasu.akkineni@louisville.edu> wrote:

> Hello all,
>
> I am using the heatmap.2 function in the gplots package. I want to supress the
> reordering of the columns of the data matrix i pass to the function. I used
> the statement,
>
> heatmap.2(z,Colv=FALSE,dendrogram="row",col=redgreen(75))
>
> where z, is the matrix of data. The output i want should have the rows
> reordered along with the dendrogram and the columns should be in the original
> order without any dendrogram. For the above statement i am getting an error:
>
> 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)
>
> I also tried using ,
> heatmap.2(z,Colv=NULL,dendrogram="row",col=redgreen(75))
> for which i am getting the output, but the columns are reordered. How can this
> be done for the way in which i want the map to appear?

Use Colv=1:ncol(z), I think.

Sean



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