[R] Bar Plot ggplot2 Filling bars with cross hatching

[Duncan Murdoch]

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.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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> 
> 
>