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st: calculating the mean of x til X[_n+t]

From   Linn Renée Naper <>
To   <>
Subject   st: calculating the mean of x til X[_n+t]
Date   Fri, 28 Nov 2008 00:43:20 +0100

I have problems in generating a variable I
need in my calculations:
I need to generate a variable X2 as a mean 
of the variable X1 and the next 
x1[_n+1] til X1[_n+8]. Thus the value of X2
is going to change for each observation in
the samlpe
Can this be done using egen? 
As this variable X2 will be changed it is
 not very practical to calculate the mean 
by typing X2=(X1 + X1[_n+1] etc..)/n.


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