[BioC] heatmap.2 how to remove row separator

[Benoît Ballester]

Hi James,

James W. MacDonald wrote:

> Then zoom in on the resulting pdf. There will be some small white lines, 
> but IMO they are very unobtrusive.

Indeed this is exactly what I see, and I do find it annoying. Have a 
look at the links below. You'll notice the difference between PDF (with 
white lines) and PNG (I believe without)


http://tinyurl.com/6yqcswr
http://tinyurl.com/67wkbl3



> Your other choice is to use levelplot() from lattice, but you will still 
> get white lines:
> 
> library(lattice)
> pdf("tmp2.pdf", width=5, height=50)
> levelplot(matrix(rnorm(10000), nrow=10), col=redgreen(100), colorkey=FALSE)
> dev.off()
> 

This seems to work slightly better.
I'll give it a try...

Ben