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st: interaction

From   riyadh shamsan <>
Subject   st: interaction
Date   Wed, 31 Mar 2010 22:19:38 +0100

using STATA 10

included an interaction of var1 (coded as 1,2,3) & var2 (coded as
1,2,3)  in my model

xi: regress i.var1*i.var2

the two variable have more then one level so the lowest level of var1
& var2 will be omitted so the question is

i want to include level 1  of var1 with different levels of var2 (2 & 3)

hope my question is clear!
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