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st: Intreg error message "observations not allowed"


From   <[email protected]>
To   [email protected]
Subject   st: Intreg error message "observations not allowed"
Date   Thu, 18 Jan 2007 16:33:20 -0500 (EST)

I'm attempting to run a Tobit regression with robust 
standard errors. Using former posts from Statlist, I've 
found I need to use the command intreg because a Tobit will 
not produce robust st. errors. However, when I use intreg, I 
get the following message: 

observations with y1 > x1 not allowed 

First, why would it matter that values of my independent 
variable are larger than my dependent variable? 

Second, how do fix this problem? Or is intreg the wrong 
command to use? 

Thanks, 
Elizabeth Halen
MPIP Research Assistant
Temple University
3rd Floor, Gladfelter Hall
215.204.9073
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