[R] 3D histogram

[A.J. Rossini]

Duncan Murdoch <dmurdoch at pair.com> writes:

> On Wed, 21 Apr 2004 14:44:19 -0400, "Peter Flom" <flom at ndri.org> wrote
> :
>
>>I agree with Lorenz, but would add a couple other recommended books:
>>
>>Cleveland, WS (1994) The Elements of Graphing Data 
>>
>>and
>>
>>Cleveland WS (1993) Visualizing Data.
>>
>>both are pub. by Hobart Press, in Summit NJ, USA
>>
>>I think the problem with 3 D graphics (at least for me) is that not only can they obscure patterns that exist, they can sometimes show patterns that do NOT exist.  Not a good deal  But others may be better at using them than I
>
> 3-D graphics can reveal a lot, but they generally need to be dynamic,
> not static.  The only static ones that I find useful are the stereo
> pairs, but those are too much trouble for most purposes.
>
> In R, Daniel Adler's rgl package does dynamic graphics.  (I wrote a
> package a few years ago that was also called rgl; I've renamed mine to
> djmrgl, and have agreed with Daniel that we're better off with his.)  

I agree with Duncan -- rgl works quite well, and we are building on it
for a VR data analysis environment.

Another option is Orca/rorca, which provides a higher level of
abstraction along with linked multiviews, but you need to have SJava
installed and working for that to work for you:

        http://www.analytics.washington.edu/orca

best,
-tony

-- 
rossini at u.washington.edu            http://www.analytics.washington.edu/ 
Biomedical and Health Informatics   University of Washington
Biostatistics, SCHARP/HVTN          Fred Hutchinson Cancer Research Center
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