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st: error when using svy probit with xi
From
Amanda Fu <[email protected]>
To
[email protected]
Subject
st: error when using svy probit with xi
Date
Fri, 17 Dec 2010 17:08:09 -0500
Dear Statalisters,
I encouter some problem when estimating a survey probit model. Each
independent variable will be interacted with the variable "group". So,
my command is like this:
. svyset [pw=pw1]
. xi:svy:probit y i.group*x1 i.group | x2 i.group*x3 i.group*x4 ,
where x1,x3,x4 are continuous x2 is categorical.
The system gives error information as:
initial vector: duplicate entries for o._Igroup_1 found
an error occurred when svy executed probit
I guess it means there are duplicate dummies in the command. But not
sure. Any comments or suggestions will be helpful. Thank you!
Best wishes,
Amanda
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