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also, can you point me to some example of how to omit colors from a palette -- View this message in context: http://n4.nabble.com/heatmap-2-color-range-tp1293498p1311031.html Sent from the R help mailing list archive at...

Hi, Is there a way to create a treemap with more than 1 grouping. I've seen a lot of examples like this: http://flowingdata.com/2010/02/11/an-easy-way-to-make-a-treemap/ but what if some...

as a followup, I tried using the rainbow function to create the gradients but is there a way to do a "reverse" rainbow, ie. normally if I do: pie(rep(1,6), col=rainbow(6,start=0, end=.07)) I...

Hi, Is it possible to create a heatmap for say a 3x3 matrix of data where every color is pre-assigned? I can easily create a matrix of hex colors but when I try to use that matrix as the...

Hi, I'm having trouble editing the qplot layout. I'm using the geom="tile" option and I want to do a few things: 1. move the vertical and horizontal gridlines so that they appear on the edge of each...

thanks, I think I got the color ranges down, however, I just realized that the colors don't match the data. When I execute: grad <- ifelse(randMat > 5,yelPal,ifelse(randMat<1.5,redPal,bluPal)) the grad matrix contains the...

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...