On 19/01/2009 7:36 PM, stephen sefick wrote:
what is your suggestion for distinguishing between many bars without
color?  I have grown up in the time of standarized tests - good or bad
I never felt nauseous.

Use gray levels or labels. If "many" is bigger than 5, it's not going to be easy, whatever method you are using.

Duncan Murdoch


Stephen

On Mon, Jan 19, 2009 at 5:20 PM, Greg Snow <greg.s...@imail.org> wrote:
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.s...@imail.org
801.408.8111


-----Original Message-----
From: r-help-boun...@r-project.org [mailto:r-help-boun...@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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