Nick,
Thanks for the help. I will look up those sources.
Reka
On Monday, May 5, 2003, at 08:59 AM, Nick Cox wrote:
REKA SUNDARAM-STUKEL
I typed the following:
bysort id type: gen lag_choice=choice[_n-1]
Could you please explain why 'year' needs to be in
parenthesis. Thank you.
No; this is very well documented.
Various possible sources of explanation.
1. On-line help for -by-.
2. [U] 14.5 (pp.108-9 in Stata 8 version; p.84 in Stata 7 version).
3. There is a discussion of by: in Stata Journal 2(1), 86-102 (2002),
which may be accessible to you.
Nick
[email protected]
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Reka Sundaram-Stukel
Graduate student
320 Taylor Hall
Department of Agriculture And Applied Economics
Madison, WI-53706
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