[R] GGPLOT2: Reverse order of legend to match order of x-axis

[hadley wickham]

See here:
http://learnr.wordpress.com/2010/03/23/ggplot2-changing-the-default-order-of-legend-labels-and-stacking-of-data/

Hadley

On Wed, Mar 24, 2010 at 2:40 PM, Ryan Garner
<ryan.steven.garner at gmail.com> wrote:
>
> How do I reverse the order of the legend in a bar plot to match order of the
> x-axis? In other words, I want the stacked colors of the legend to match the
> stacked colors of the bar plot. I tried this, but it didn't work.
>
> colors <- c("5" = "red","4" = "blue","3" = "darkgreen")
> p <- qplot(factor(cyl), data=mtcars, geom="bar", fill=factor(gear))
> p + scale_colour_manual(name = "gear",values = colors,breaks =
> c("5","4","3"),labels = c("5 speed","4 speed","3 speed"))
>
> http://n4.nabble.com/file/n1689526/plot.jpeg
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-- 
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/