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Re: st: Default range for 'kdensity'


From   Camelia Minoiu <cm2036@columbia.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Default range for 'kdensity'
Date   Tue, 26 Oct 2004 08:09:29 -0400 (EDT)

Thank you very much for your reply.

Camelia

On Tue, 26 Oct 2004 philippe.vankerm@ceps.lu wrote:






From inspection of the code (-adotype kdensity-), it looks as though the
default range is [(min(x)-h);(max(x)+h)]; i.e. from the min value of your
sample minus the bandwidth to the max value of your sample plus the
bandwidth.

Try

 sysuse auto
 kdensity price , w(1000) gen(x fx)
 su price x


Philippe


-----owner-statalist@hsphsun2.harvard.edu wrote: -----

Date: Mon, 25 Oct 2004 22:13:11 -0400
From: "Camelia Minoiu"
Subject: st: Default range for 'kdensity'

Dear All,

I have a short question about -kdensity-. What is the default
interval in
which the points of estimation are chosen? It does not appear to be
[min,max] where min=the minimum observed value in the data, and max=
the
maximum observed value in the data; rather, it appears to be slightly
larger
an interval. (I have been unable to find this information in the
documentation.) What is the exact rule which chooses the limits of
this
(default) range?

Thank you for your support.

Camelia Minoiu
Ph.D. Student
Dept. of Economics
Columbia University


<<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>>
Dr. Philippe Van Kerm
IRISS - Integrated Research Infrastructure in the
Socio-Economic Sciences
CEPS/INSTEAD
BP48, L-4501 Differdange, Luxembourg
http://www.ceps.lu/iriss <<
http://econpapers.hhs.se/RAS/pva19.htm <<
<<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>>



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