[R] Adding labels to heatmaps from image()

[drajaman at bidmc.harvard.edu]

Hi,

I have been trying to add labels to the rows of a heatmap produced using image() function. It is simply not working. Here is what I did.

A2Rplot.hclust(hcc,k=length(num),col.up="black",col.down=num,lty.up=2,lty.down=1,lwd.up=1,lwd.down=2,show.labels=FALSE)
#used the above external program to create a colored dendrogram
xsort <- x[1:nrow(x), hcc$labels[hcc$order]]
go<-genes[hc$order]
image(scale(t(xsort)), col=greenred(60),xaxt="n", yaxt="n")
di <- dim(x)
nr<-di[1]
nc<-di[2]
axis(4, 1:nr, labels=go, las= 2, line= 0, tick=TRUE, cex.axis= 2)

The output pdf I get is attached in this mail. I just get the first member of the vector "go" on axis(4). It looks like the program does not know where or how long axis(4) should be. 

I have been stuck with this problem for the past couple of days, desperately need help.

Thanks
Deepa Rajamani

-------------- next part --------------
A non-text attachment was scrubbed...
Name: EHF,ERG,ELF2,ELF3.pdf
Type: application/pdf
Size: 54050 bytes
Desc: EHF,ERG,ELF2,ELF3.pdf
URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20090316/6b56729d/attachment-0003.pdf>