search for: colorscale

...t I wanted is 0(Green)-1(Red)-max(green). What's the easiest way to achieve this kind of divergent color scale? How shall I make my own palette and use it in the map.market or tree map function? Thank you very much~ -- View this message in context: http://r.789695.n4.nabble.com/How-to-custom-colorscale-in-treemap-tp4594161p4594161.html Sent from the R help mailing list archive at Nabble.com.

...o make an image however the values in z are not on an uniform grid. Have a dataset with length(x) == length(y) == length(z) x[1],y[1] gives the position of z[1] and would like to encode value of z by a color. looking for something like plot(x,y, col = z) where col for z is cleverly chosen from a colorscale. Hope I made clear what I am looking for. Thanks Eryk

...#39;m not using the ylab inside gplot.hexbin because it writes over the numbers on the axis. The file is 33k records but I could get a subset and paste in here if people need that to resolve the issue. the code par(oma=c(3,3.5,3,1)) par(mar=c(2, 4, 0, 0)) plot.new() gplot.hexbin(h, style = "colorscale", colramp = function(n) {LinGray(7, beg=92, end=1)}, colorcut = 8, xlab = "", ylab = "", main = "", legend = .75, lcex = .8) mtext("Outside Temperature (F)", side=1, line = 2, col="black",cex=1.1) mtext("Electrical Power (kW)...

Dear All, Please see the code snippet at the end of the email. I am using the color2D.matplot in Plotrix to plot a matrix. It works great, but there are a few things I cannot figure out (1) the value of cex.axis in the code snippet does not seem to affect the final pdf at all (at least on my system, Ubuntu 9.10, plotrix and Cairo installed from cran). How do I specify the size of the axis ticks

Dear All, I am using the plotrix library to plot some matrices. I have a problem: some of my data are outliers, hence using a linear color scale does not work very well (you would see too many cells having a similar, indistinguishable color). See the code snipped at the end of the email. Plotting the logarithm of the data gets the job done, but my problem is that I would like to write in every

Hi all, I'm trying to make multiple lattice contour plots which have the same color key, to allow good comparisons. However, I run into some problems when fitting the plots to the color key. Basically my strategy to tackle this problem was: 1) define a color key for all plots; 2) calculate the variable range for each plot; 3) calculate the range of colors from the color key that correspond