Hi there,
I have a matrix like this:
> a4[1:20, 1:5]
194 211 294 314 315
GO:0000003 1 1 1 1 1
GO:0000072 0 0 0 0 0
GO:0000076 1 0 0 0 0
GO:0000082 1 3 1 1 1
GO:0000083 1 0 0 0 1
GO:0000086 0 1 0 1 1
GO:0000114 0 0 0 0 0
GO:0000115 0 0 0 0 0
GO:0000117 0 0 0 0 0
GO:0000160 0 0 1 0 0
GO:0000212 0 0 0 0 0
GO:0000216 1 0 0 1 0
GO:0000226 1 0 1 0 0
GO:0000278 1 1 1 2 1
GO:0000320 0 0 0 0 0
GO:0000710 0 0 0 0 0
GO:0000768 0 0 0 0 0
GO:0000819 1 0 0 1 1
GO:0000910 1 0 0 3 0
GO:0000917 0 0 0 0 0
I wanted to plot a heatmap to assign "grey" to 0, "blue" to 1, "purple" to
2, and "red" to 3. I did not some trials and found some problems like this:
When the row is all zero, there could be a white bar in the middle of the
heatmap though I did not assign "white" to any value.
Or some row believes "grey" as 0 while some rows believes "blue" as "0".
Did I make some mistake here?
library(gplots)
heatmap.2(a4[1:40,], Rowv=NA, Colv=NA, col=c("grey", "blue", "purple",
"red"), trace="none")
Thanks,
Weiwei
--
Weiwei Shi, Ph.D
Research Scientist
"Did you always know?"
"No, I did not. But I believed..."
---Matrix III
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