[R] smoothScatter

[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
> 
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