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Re: st: Inequality constraints in single and multi-equation models
Actually, this advice is incorrect. Stata only allows equality constraints.
A quick look at -help constraint- or a google of "Stata inequality
constraints" would have led either poster to that answer.
----- Original Message -----
From: "Rose Medeiros" <email@example.com>
Sent: Saturday, December 24, 2005 8:57 AM
Subject: Re: st: Inequality constraints in single and multi-equation models
In general, Stata does not accept the form "0 < lnpl < 1" I believe you
are getting the error message "0 not found" because Stata does not expect
a numeric value in that position. Instead you probably want something of
define constraint 7 lnpl < 0 & lnpl < 1
define constraint 7 lnpl < 0
define constraint 8 lnpl < 1
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