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st: broken stick (piecewise linear) regression

From   keith Farnsworth <[email protected]>
To   [email protected]
Subject   st: broken stick (piecewise linear) regression
Date   Tue, 24 May 2005 11:35:16 +0100

Dear all,
I intend to fit a broken stick model following Bacon and Watts "Estimating the transition between two intersecting straight lines", Biometrika 1971. I have seen code for this to use the S or R package's nls, which I suspect uses maximum likelihood (but not sure) [see msg00215.html].

I am not an S user, I am a Stata enthusiast!
However, I found no reference to this kind of model in Stata searches. I hope someone with more experience than me can explain how Stata will implement the Bacon and Watts model.


Dr Keith Farnsworth
Lecturer in Mathematical and Behavioural Ecology
Queens University Belfast

Medical Biology Centre
97 Lisburn Road
Belfast BT9 7BL
Northern Ireland
phone +44 (0)2890 272352
fax +44 (0)2890 236505

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