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Re: st: How to use r(p)


From   Jean-Benoit Hardouin <jean-benoit.hardouin@orscentre.org>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: How to use r(p)
Date   Mon, 12 Sep 2005 10:22:23 +0200

You can try
. centile d, centile(33)
. reg y a b c if d>r(c_1)
Best,
Jean-Benoit Hardouin

FUKUGAWA, N. a écrit :

Dear all,
Suppose we want to limit observations where one variable records a larger value
than its top quartile, we can write as follows.

sum d,detail
reg y a b c if d>r(p75)

However, this program allows only fixed thresholds such as 1, 10, and 75 percent.
How can I use other thresholds such as r(p33) in the program?
Or, is there any program to do the same?
Thanks in advance.

--
*********************************************
Jean-Benoit Hardouin
Biostatisticien
Observatoire Régional de la Santé du Centre
BP 2439
1, rue Porte Madeleine
45032 Orléans Cedex 1
tél : 02 38 74 48 80
fax : 02 38 74 48 81
Email : jean-benoit.hardouin@orscentre.org
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