Re: [R] heatmap.2 in gplots package

From: Akkineni,Vasundhara <>
Date: Thu 23 Feb 2006 - 07:15:31 EST

I used Colv=1:ncol(z), and i got the display the way i need it. Thanks.

One more question, is there a way to increase the size of the color key in heatmap.2 so that all the tick values(for Eg.,in my case, values range between 10,000-50,000) can be seen clearly. In the normal case i am just able to see the initial tick value which is 10,000. Please suggest a better way to do this.

Thanks for the help.


-----Original Message-----
From: Sean Davis <>
To: "Akkineni,Vasundhara" <>, r-help <> Date: Wed, 22 Feb 2006 12:55:25 -0500
Subject: Re: [R] heatmap.2 in gplots package

On 2/22/06 12:09 PM, "Akkineni,Vasundhara" <> 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 mailing list PLEASE do read the posting guide! Received on Thu Feb 23 07:20:14 2006

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