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st: sum of a series of number


From   "Sayema Bidisha" <lexshb@nottingham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: sum of a series of number
Date   Sun, 13 Aug 2006 20:53:43 +0100

Hi,
 
I am trying to get a function of age from a panel of households in STATA. I want to have a sum of a quadratic function (ax+bx^2) of age of a person until age 65: sum (ax+bx^2) where we need the sum of this function from his current age to age 65. For example if a person is 50 years old (x=50) and the predicated coefficient for age (a) is 1 and age  square (b) is 1.5 then for him the estimated age function is =(50*1+50^2*1.5) + (51*1+51^2*1.5) + .............(65*1+65^2*1.5).It would be appreciated if anyone can tell me how to do this in STATA.
 
Thanks
Bidisha


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