You can use the breaks argument in image to do this. (You don't specify a
function you're using, but other heatmap functions probably have a similar
parameter.) Look across all your data, figure out the ranges you want to
have different colors, and specify the appropriate break points in each
Thanks for the reply. As I understand it, breaks only controls the
binning. The problem I'm having is that each subset heatmap has
slightly different min and max log2 intensities. I'd like the colors
to be based on the overall (complete set) max and min, not the subsets'
max and min --
mean?
HTH,
Matt
-Original Message-
From: Jake Michaelson [mailto:[EMAIL PROTECTED]
Sent: Thursday, July 21, 2005 10:45 AM
To: Wiener, Matthew
Cc: R-help@stat.math.ethz.ch
Subject: Re: [R] heatmap color distribution
Thanks for the reply. As I understand it, breaks only controls
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Jacob Michaelson
Sent: 21 July 2005 12:26
To: r-help@stat.math.ethz.ch
Subject: [R] heatmap color distribution
Hi all,
I've got a set of gene expression data, and I'm plotting several
heatmaps
