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st: RE: 632 bootstrap


From   "David Harrison" <david.harrison@icnarc.org>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: 632 bootstrap
Date   Mon, 3 Apr 2006 09:26:45 +0100

If you use -bsample- with the option -weight(wvar)- to specify your
bootstrap sample by frequency weights, then you have access to the
original sample, bootstrap sample and omitted observations
simultaneously, as:

<cmd>             /*original sample*/
<cmd> [fw=wvar]   /*bootstrap sample*/
<cmd> if wvar==0  /*observations omitted from the bootstrap sample*/

Hope this helps

David

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Colin Cooke
Sent: 02 April 2006 01:44
To: statalist@hsphsun2.harvard.edu
Subject: st: 632 bootstrap

Curious if anyone has written a program to implement the .632 bootstrap
in Stata.  Im unable to figure out a way to isolate observations that
were not included in the bootstrap sample. Thanks for your help.

-CC

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