
There are a number of discussion threads on the google groups ggplot2 page: here are two of them.
http://groups.google.com/group/ggplot2/browse_thread/thread/ca546f7f4d636deb/e0763a54b7735c35?lnk=gst&q=fill+pattern#e0763a54b7735c35

http://groups.google.com/group/ggplot2/browse_thread/thread/9a9c081d235efc24/d319d4500174cdd7?lnk=gst&q=fill+pattern#d319d4500174cdd7
Scott
On Wednesday, May 18, 2011 at 8:39 AM, Christopher Desjardins wrote:
Hi,
> I am wondering if there is a way to change the pattern of the fill in
> histogram in ggplot2? By default the fill is solid and I'd like to add some
> sort of pattern to make it more visible that these are different levels of a
> factor.
> 
> Thanks!
> Chris
> 
>  [[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 

	[[alternative HTML version deleted]]

