[R] ggplot2 - Problem with grid plot

[Chris Friedl]

ONKELINX, Thierry wrote:
> 
> Dear Chris,
> 
> You'll need to add information on the facet factor (color) to the
> medians dataset.
> 
> library(ggplot2)
> medians <- aggregate(diamonds$price, list(cut = diamonds$cut, color =
> diamonds$color), median)
> ggplot(data=diamonds, aes(x=price)) + geom_density(aes(color=cut)) +
> geom_vline(data=medians, aes(color=cut, intercept = x)) +
> facet_grid(color~.)
> 
> HTH,
> 
> Thierry
> 
> 

As they say downunder, YOU BLOODY BEAUTY!!!! (that's a good thing :)
Not only can I now create the plot I want, but I also learned the aggregate
function which is exactly what I was looking for as a way of trying to solve
this problem. R has a steep learning curve but as you go up the view gets
better and better. Thanks again for your help Thierry. And Hadley, thanks
again for ggplot ... I'm appreciating its power with each day.
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