st: New version of -xglm- on SSC

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

Thanks as always to Kit Baum, a new version of the -xglm- 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 -xglm-.

The -xglm- package is described as below on my website, and is an 
extended version of -glm-. The new version is upgraded to Stata Version 
13, so it can take advantage of new features of -glm- introduced in 
Stata Version 13 (like the -asis- option).

Users of Stata Versions 11 and 12 can still download the old Stata 11 
version of -xglm- from my website by typing, in Stata,

net describe xglm, from(http://www.imperial.ac.uk/nhli/r.newson/stata11)

and installing the package.

I would like to thank Kristin MacDonald of Stata TechSupport for her 
help in explaining the recently-introduced -asis- option of -glm-, when 
I contacted Stata TechSupport after being astounded to discover that the 
default policy of -glm- on zero-prevalence factor levels in a logistic 
regression had changed. I had always previously used -glm- because 
(unlike -logit-) it allowed me to estimate zero odds for a factor level 
in a model, if these zero odds existed. I now know that, if I want to do 
that in today's Stata, I must use the -asis- option from now on.

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 7352 8121 ext 3381
Fax: +44 (0)20 7351 8322
Email: r.newson@imperial.ac.uk
Web page: http://www.imperial.ac.uk/nhli/r.newson/
Departmental Web page:
http://www1.imperial.ac.uk/medicine/about/divisions/nhli/respiration/popgenetics/reph/

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

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package xglm from http://www.imperial.ac.uk/nhli/r.newson/stata13
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TITLE
      xglm: Extended version of glm

DESCRIPTION/AUTHOR(S)
      xglm is an extended version of glm, designed mostly for use
      with the parmby module of the parmest package, downloadable
      from SSC.

      Author: Roger Newson
      Distribution-Date: 23january2014
      Stata-Version: 13

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