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smoothScatter
2 messages · Tom Hart, Liaw, Andy
I just tried it and had no problem with that code. Are you sure the packages are installed correctly? What does sessionInfo() say after you got the error? smoothScatter() _is_ in geneplotter, as is densCols(). Andy From: Tom Hart
Hi, I have been trying to plot density plots using the example on: http://addictedtor.free.fr/graphiques/graphcode.php?graph=139 I used to use this function, but I cannot get any old code or even the example to work. library("geneplotter") require("RColorBrewer") x1 <- matrix(rnorm(1e4), ncol=2) x2 <- matrix(rnorm(1e4, mean=3, sd=1.5), ncol=2) x <- rbind(x1,x2) layout(matrix(1:4, ncol=2, byrow=TRUE)) op <- par(mar=rep(2,4)) smoothScatter(x, nrpoints=0) smoothScatter(x) smoothScatter(x, nrpoints=Inf, colramp=colorRampPalette(brewer.pal(9,"YlOrRd")), bandwidth=40) colors <- densCols(x) plot(x, col=colors, pch=20) par(op) But I can't even get the example to work. I have installed geneplotter and RColorBrewer, but I get the messages " Error: could not find function "smoothScatter" Error: could not find function "densCols" I thought it was something to do with the version of R, but I've now tried it in 2.0-2.6 and nothing works. Does anyone know how to install smoothScatter and densCols separately? Any ideas? Cheers, Tom The Zoological Society of London is incorporated by Royal Charter Principal Office England. Company Number RC000749 Registered address: Regent's Park, London, England NW1 4RY Registered Charity in England and Wales no. 208728
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