You might also consider a density plot instead of a 3D plot. I have
used the sunflower density plot, implemented in the -sunflower- command,
for this kind of problem.
HTH,
--Rich
Richard A. Forshee, Ph.D.
Senior Risk Assessment Expert
Office of Biostatistics & Epidemiology
FDA - Center for Biologics Evaluation and Research
1401 Rockville Pike HFM-210
Rockville, MD 20852
Phone: (301) 827-6042
Fax: (301) 827-3529
E-mail: [email protected]
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Maarten buis
Sent: Wednesday, September 02, 2009 11:12 AM
To: [email protected]
Subject: Re: st: 3D surface plot of joint density
--- On Wed, 2/9/09, Donna Gilleskie wrote:
> I am trying to generate a graph of the joint
> density of two variables (bmi and age).
3D graphics is not a strong point of Stata. One
thing you could do is turn age into a
categorical variable and use Nick Cox's
-stripplot- to display the distribution of BMI
for each age category in one graph. This may
actually be more easy to interpret than a 3D
density plot. You can install -stripplot- by
typing in Stata -ssc install stripplot-.
Hope this helps,
Maarten
--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany
http://www.maartenbuis.nl
--------------------------
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