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st: NLS per individual


From   Anton Goeree <antongoeree@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: NLS per individual
Date   Sun, 21 Oct 2012 16:30:16 +0200

Dear Statalist users,

Currently, I'm doing the following NLS on my dataset:
nl (p = 1 / (1 + exp( - {sigma} * (x - y ^ {beta} )))), nolog

The dataset contains 500 observations: 50 id's and 10 p/x/y per id.
The variable p is either zero or one, and x,y are values between 50 and 200.

I'd like to get individual estimates (for each id) for "sigma" and
"beta". I could do - bysort id: nl (p = 1 / (1 + exp( - {sigma} * (x -
y ^ {beta} )))), nolog - of course, but that would give me a messy
list of 50 outputs. Does any of you know if it is possible to put the
regression estimates into two new variables?

Thanks in advance for any aid!
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