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st: post


From   "Pedro Martins" <P.Martins@warwick.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: post
Date   Wed, 27 Nov 2002 16:46:28 +0000

dear all,

i want to save, in a while/do loop, certain observations of a data set into another data set without closing the first data set. it seems that -post- is the command i should use but apparently i'm not following its syntax correctly.

in a do-file, i wrote:

postfile x1 x2 using filename, replace
local i=1
while `i' <=20 {
here i change the sample and do things to variable y
post x1 x2 if y==1
local i=`i'+1
}
postclose 

x1 and x2 are the two variables i want to save in the secondary dataset (without closing the primary one). can you help?!

thanks a lot

pedro




****************************************************
Pedro Martins
Department of Economics
University of Warwick
Coventry CV4 7AL
United Kingdom

Tel: +44/0 24765 28418
Fax: +44/0 24765 23032
Email: p.martins@warwick.ac.uk
Web: www.warwick.ac.uk/staff/P.Martins
*****************************************************

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