[R] plot background - excel gradient style background ?

[baptiste auguie]

Looking at these, and in retrospect, if I were writing a manuscript of
the pre-digital age, I would definitely add a burning mark as a
finishing touch to complete the work. Perhaps waving the parchment
above a burning candle.

With modern digital support, you can fake a similar result using e.g.
grid.raster or rasterImage, as others have said before.

library(grid)
g <- rasterGrob(blues9, width=unit(1,"npc"), height = unit(1,"npc"),
interpolate = TRUE)
# grid.draw(g)

library(ggplot2)
ggplot(mtcars, aes(factor(cyl))) + # add gradient background
   annotation_custom(g, xmin=-Inf, xmax=Inf, ymin=-Inf, ymax=Inf) +
   geom_bar() # add data layer

baptiste


On 30 June 2012 09:07, jcrosbie <james at crosb.ie> wrote:
> I have a number of different figures I wish to create with a gradient
> background. In addition to the two examples I've uploaded I need a boxplot,
> histogram, etc.
>
>
> http://r.789695.n4.nabble.com/file/n4634932/fig1.png fig1.png
> http://r.789695.n4.nabble.com/file/n4634932/fig2.png fig2.png
>
> --
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