Bar Plot ggplot2 Filling bars with cross hatching
On 20/01/2009, at 1:46 PM, Duncan Murdoch wrote:
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.
I disagree. Grey levels suck; labels are a kludge. It is an issue for ``many'' == 2, for which crosshatching works perfectly. cheers, Rolf
Duncan Murdoch
Stephen On Mon, Jan 19, 2009 at 5:20 PM, Greg Snow <Greg.Snow at 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.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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