colouring a tree
On Thu, 2008-08-07 at 16:15 +0300, Monna Nyg?rd wrote:
Hi all. I would be very pleased if someone could help me, as I do not seem to get the different branches of my tree painted in different colours. The closest I get is colouring the names of my samples(=names of the branches). Here is the code.
...
data <- read.table(file = "S://SEDIM//TRFLP//B12.5_50-700bp.txt" , as.is = TRUE, header = TRUE, sep = "\t", row.names = 1)#define vector with depths of samples
In order to run the example, we'll need some data, even if it is made up. I think you can get the values you want like this: x<-ceiling(x/100)
...I need to change the tip.color into something else, but what?
Even better would be if someone could help me changing the colours
given according to the depth of the sample (according to how high
a number I have given the samples in row.names), I mean getting
darker as the samples get deeper etc.. Is there an easy way doing this?
If you want to make colors darker, you can do something like this:
darkenColor<-function(col,colorshift=0.75) {
rgbmat<-col2rgb(col)
ncol<-dim(rgbmat)[2]
rgbmat<-rgbmat*colorshift
return(rgb(rgbmat))
}
This will darker your colors toward black.
Jim