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st: re: browsing a subset of panels in a panel dataset


From   Kit Baum <Baum@bc.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: re: browsing a subset of panels in a panel dataset
Date   Wed, 2 Apr 2008 09:57:30 -0400

Frederic said

I analyse a panel data set with several observations (time) for all panel
group, which are marked with a panel identifier. I have to select
several panel groups out of
the entire panel dataset on the basis of a binary variable ("binvar") coded
1 when fulfilling a certain criterion. Binvar==1 is mostly the case
for only a single observation per panel group. I would like to be able
to browse the
entire panel for visual inspection, i.e. also the observations in that
panel group for
which binvar==0. The list of panel identifiers with a panel
observation holding binvar==1 is usually fairly long so

browse if binvar=="panel identifier1" | binvar=="panel identifier2" etc.

is too cumbersome.

Up to now I have used

generate "auxiliary_var"=0
sort "panel_identifier" "binvar"
by "panel identifier": replace "auxiliary_var"=1 if "binvar"[_N]==1
browse if "auxiliary_var"==1

I have to do this procedure repeatedly and was wondering if there's a
more elegant way of looking at the entire panel group, such as handing
over the list of panel identifiers to a temporary variable such as a
local macro, say "temp_var" and then type something along the lines of

browse if "panel identifier" is a part of "temp_var"


I think you just need

bysort panel_identifier: g want = sum(binvar)
browse if want


Kit Baum, Boston College Economics and DIW Berlin
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html


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