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RE: st: How to test whether data follows Exp distribution?


From   "Lachenbruch, Peter" <[email protected]>
To   "'[email protected]'" <[email protected]>
Subject   RE: st: How to test whether data follows Exp distribution?
Date   Wed, 7 Jul 2010 11:01:23 -0700

If I recall my basic math stat, log(Y) should be uniform if Y is exponential.  So you could check it that way.  A very simple idea would be to bin the logs and do a chi-squared gof test.

Tony

Peter A. Lachenbruch
Department of Public Health
Oregon State University
Corvallis, OR 97330
Phone: 541-737-3832
FAX: 541-737-4001


-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Maarten buis
Sent: Tuesday, July 06, 2010 11:39 PM
To: [email protected]
Subject: Re: st: How to test whether data follows Exp distribution?

--- On Wed, 7/7/10, Jabr, Wael M wrote:
> I am trying to find if the variable I
> have follows an exponential distribution.

You can use -hangroot- to check an empirical
distribution against, among others, an
exponential distribution. To install it type
in Stata -ssc install hangroot-.

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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