[R] barplot with both color and shading

[Shi, Tao]

Hi Michael,

Thanks for your reply! 

I'm not sure if I was clear.  I was really thinking about shading lines.  


I have just came up with a solution on my own:
barplot(1:10, col=rep(0:1, each=5))

barplot(1:10, angle=20, density=c(0,20), col=2, add=T)


Here is my initial failed attempt:

barplot(1:10, angle=20, density=c(0,20), col=rep(0:1, each=5))


...Tao




----- Original Message -----
> From: R. Michael Weylandt <michael.weylandt at gmail.com>
> To: "Shi, Tao" <shidaxia at yahoo.com>
> Cc: "r-help at r-project.org" <r-help at r-project.org>
> Sent: Tuesday, February 21, 2012 6:49 PM
> Subject: Re: [R] barplot with both color and shading
> 
>T his seems like a natural fit for ggplot2 graphics, but I'm not aware
> of shading as a widely implemented graphical element: this might have
> some useful information --
> http://had.co.nz/ggplot2/geom_histogram.html
> 
> Can you find an example of "shading" in R? (perhaps in the R Graphics
> Gallery) If you look at example(barplot) there's an example of how to
> use different line patterns, but I don't find it particularly clear.
> The grouping techniques seem much clearer to me.
> 
> Michael
> 
> On Tue, Feb 21, 2012 at 5:24 PM, Shi, Tao <shidaxia at yahoo.com> wrote:
>>  Hi list,
>> 
>>  I want to draw a bar plot with color indicating one grouping and different 
> shading on top of the color indicating another grouping.  How should I proceed?
>> 
>>  Thanks!
>> 
>>  ...Tao
>> 
>> 
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