On Fri, 2009-10-09 at 11:51 -0700, Tim Clark wrote: > Dear List, > > Is there a color palette avaliable similar to what is used in satellite ocean > color imagery? I.e. a gradient with blue on one end and red on the other, > with yellow in the middle? I have tried topo.colors(n) but that comes out > more yellow on the end. I am looking for something similar to what is found > on the CoastWatch web page: > > http://oceanwatch.pifsc.noaa.gov/imagery/GA2009281_2009282_sst_2D_eddy.jpg > > Thanks! > > Tim > > > Tim Clark > Department of Zoology > University of Hawaii
Tim, You can make a palette in R, using colorRampPalette, look this example Satelite.Pallete <- colorRampPalette(c("blue3","cyan","aquamarine","yellow","orange","red")) require(fields) image.plot(volcano, col = Satelite.Pallete(500), legend.lab="Scale") contour(volcano, levels = seq(90, 200, by = 5), add = TRUE) -- Bernardo Rangel Tura, M.D,MPH,Ph.D National Institute of Cardiology Brazil ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.