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barplot with both color and shading

6 messages · Shi, Tao, R. Michael Weylandt, Jim Lemon +1 more

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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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This 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:
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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 -----
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On 02/22/2012 09:24 AM, Shi, Tao wrote:
Hi Tao,
You can build a barplot with the rectFill function (plotrix), but it is 
not a matter of just calling barplot. Have a look at the example 
function and see if it is what you want.

Jim
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Shi, Tao <shidaxia <at> yahoo.com> writes:
shading on top of the color
Does this help?

http://finzi.psych.upenn.edu/Rhelp10/2010-September/252219.html 

Michael Bibo
michael_bibo<at>health.qld.gov.au
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Thank you both, Michael and Jim, for the answers!




----- Original Message -----