Understood.  Will head the warning about odd way to display data.

Any recommendations about where I look to find full details about "qplot".

I tried ?qplot, but it did not return full details. 

That description was missing a few items, e.g. fill, which is used below. 

Thank you again for any details you can provide. 

Cheers.



--- On Sat, 1/3/09, hadley wickham <h.wickham@gmail.com> wrote:
From: hadley wickham <h.wickham@gmail.com>
Subject: Re: [R] R Stacked Histogram
To: jasonkrupert@yahoo.com
Cc: r-help@r-project.org
Date: Saturday, January 3, 2009, 9:16 AM

On Fri, Jan 2, 2009 at 11:00 PM, Jason Rupert <jasonkrupert@yahoo.com>
wrote:
> I've seen this asked, but never fully answered.
>
> Is it possible to plot stacked histograms in R?
>
> I have four data sets that I would like to show combined vertically in
histogram format.
>
> Is this possible?

Yes, but it's generally not a terribly good way to display your data,
as it is hard to read the values of all except the series on the
bottom.

install.packages("ggplot2")
library(ggplot2)
qplot(carat, data = diamonds, binwidth = 0.1)
qplot(carat, data = diamonds, binwidth = 0.1, fill = cut)
qplot(carat, data = diamonds, binwidth = 0.1, fill = color)
qplot(carat, data = diamonds, binwidth = 0.1, fill = clarity)

More examples at http://had.co.nz/ggplot2/geom_histogram.html

Hadley


-- 
http://had.co.nz/



      
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