Re: [R] abline on heatmap

You can use abline, but heatmap rescales the x and y coordinates to min of 0, max of 1. You can use the max x and y values to find the desired location for the line. Sarah On Sat, Mar 20, 2010 at 4:02 PM, Tim Smith wrote: > Hi, > > Is there a way I can draw an abline on a heatmap? I try the abli

[R] abline on heatmap

Hi, Is there a way I can draw an abline on a heatmap? I try the abline function, but don't get the line. My sample code is: mat <- matrix(sample(1:100,40),nrow=5) heatmap(mat,col=greenred(75),trace="none", dendrogram = "column",labCol = NULL) abline(h=5,v=4) thanks! [[alternati