Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

Re: st: RE: broken stick (piecewise linear) regression


From   Maarten buis <[email protected]>
To   [email protected]
Subject   Re: st: RE: broken stick (piecewise linear) regression
Date   Thu, 31 Jan 2008 21:20:14 +0000 (GMT)

--- Raphael Fraser <[email protected]> wrote:
> -nl- offers a solution but it is NOT a good one. I have tested it
> with data from the cited paper below and have been found lacking.

In what way? As I said before -nl- is sensitive to good starting
values, and if you give no starting values or very wrong ones that -nl-
can converge to a weird solution.

-- Maarten

-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


      __________________________________________________________
Sent from Yahoo! Mail - a smarter inbox http://uk.mail.yahoo.com

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index