st: New version of -polyspline- on SSC

["Roger B. Newson" <r.newson@imperial.ac.uk>]

Thanks once again to Kit Baum, a new version of the -polyspline- package 
is now available for download from SSC. In Stata, use the -ssc- command 
to do this, or -adoupdate- if you already have an old version of 
-polyspline-.

The -polyspline- package is an easy-to-use front end for the -bspline- 
package, and generates sensible reference-spline bases for polynomials 
and other unrestricted spline, and is described as below on my website. 
The new version is even more user-friendly, as it suppresses some 
confusing and unnecessary warning messages that the old version used 
occasionally to generate, and sorts, and removes duplicates from, the 
list of reference points specified by the -refpts()- option.

Best wishes

Roger

--
Roger B Newson BSc MSc DPhil
Lecturer in Medical Statistics
Respiratory Epidemiology, Occupational Medicine
and Public Health Group
National Heart and Lung Institute
Imperial College London
Royal Brompton Campus
Room 33, Emmanuel Kaye Building
1B Manresa Road
London SW3 6LR
UNITED KINGDOM
Tel: +44 (0)20 7594 7931
Email: r.newson@imperial.ac.uk
Web page: http://www.imperial.ac.uk/nhli/r.newson/
Departmental Web page: http://www.imperial.ac.uk/nhli/reomph/

Opinions expressed are those of the author, not of the institution.

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package polyspline from http://www.imperial.ac.uk/nhli/r.newson/stata10
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TITLE
      polyspline: Generate sensible bases for polynomials and other splines

DESCRIPTION/AUTHOR(S)
      The polyspline package inputs an X-variable and a list of
      reference points on the X-axis, and generates a basis of
      reference splines (one per reference point) for a polynomial
      or other unrestricted spline.  This basis can be included in
      the list of covariates of a regression model.  The estimated
      parameters will then be values of the spline at the reference
      points, or differences between values of the spline at the
      reference points and the value of the spline at a base
      reference point.  polyspline is an easy-to-use front end for
      the SSC package bspline, which must be installed for
      polyspline to work.

      Author: Roger Newson
      Distribution-date: 15march2014
      Stata-version: 10


INSTALLATION FILES                                  (click here to install)
      polyspline.ado
      polyspline.sthlp
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