ggplot2: separate color scale per facet

Question

Intuitively I\'m looking for something like: facet_(scales=\"free_color\")

I do something like

p <- ggplot(mpg, aes(year, displ, colo         


        

Answer 1

I'm not sure that this is an available option when you're colouring by a factor. However, a quick way to produce the individual plots would be something like this:

d_ply(mpg, .(manufacturer), function(df) {
jpeg(paste(df$manufacturer[[1]], ".jpeg", sep=""))
plots <- ggplot(df, aes(year, displ, color=factor(model))) + geom_jitter()
print(plots)
dev.off()
})

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