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redial
2010 Jan 26
2
heatmap.2 color range
Hi,
I'm trying to create a heatmap with color ranges for different values in my
matrix. For example:
If x > 5 , use orange gradient
if x < 1.5, use red gradient
.....
Right now I have the following:
orgPal<-brewer.pal(3,"Oranges")
bluPal<-brewer.pal(3,"Blues")
redPal<-brewer.pal(3,"Reds")
grad <- ifelse(randMat > 5,orgPal,ifelse(randMat<1.5,redPal,bluPal))
hmap <- heatmap(randMat,Rowv=NULL, Colv=NULL,dendrogram="none",col = grad,
scale="column",...)
the problem is that all the colors become very close to white on o...