[R] Bar Plot ggplot2 Filling bars with cross hatching

[Greg Snow]

I think the fact that the grid package does not support cross-hatching is a feature not a bug (or deficiency), and I hope that this is not "fixed".  Tufte's book (The Visual Display of Quantitative Information) has a section on why cross-hatching should be avoided (unless of course your goal is to induce nausea in the observer rather than convey information).

I would edit Hadley's statement below to say "fortunately there's no way to do this in ggplot2".

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of hadley wickham
> Sent: Thursday, January 15, 2009 10:55 AM
> To: stephen sefick
> Cc: R-help
> Subject: Re: [R] Bar Plot ggplot2 Filling bars with cross hatching
> 
> 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
> 
> --
> http://had.co.nz/
> 
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