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st: Orthog command in Stata

From   "student19767" <[email protected]>
To   [email protected]
Subject   st: Orthog command in Stata
Date   Wed, 26 Jan 2005 01:28:38 -0000

I am trying to use orthog command for some of the variables in the 
data set. I am using the following command:

orthog x1 x2 x3, gen(u1 u2 u3) mat(R)
        matrix c = R[1...,"x1"]
        matrix c = c'    
        matrix score double samepr = c
        compare x1 samepr

The output I am getting is this:

				----------	difference	------
			count	minimum	average	maximum
samepr	missing	only	2
total			2

I am getting missing values in u2 and u3 while u1 is  [1 -1]`

Am I missing something here?


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