[R] Bar Plot ggplot2 Filling bars with cross hatching

[hadley wickham]

Hi Stephen,

> #I am putting a test together for an introductory biology class and I
> would like to put different cross hatching inside of each bar for the
> bar plot below

ggplot2 uses the grid package to do all the drawing, and currently
grid doesn't support cross-hatching, so unfortunately there's no way
to do this in ggplot2.

Regards,

Hadley

-- 
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