R help - Apr 2003 - Shafer's MI software for S-plus

Greetings folks,

Shafer's S-plus package "norm" for multiple imputation of
missing values in multivariate normal data has been most
kindly and usefully ported to R by Alvaro A. Novo.

Shafer's website

  http://www.stat.psu.edu/~jls/

lists four S-plus packages in all:

  NORM - multiple imputation of multivariate continuous data

  CAT - multiple imputation of multivariate categorical data

  MIX - multiple imputation of mixed continuous and categorical data

  PAN - multiple imputation of multivariate panel or clustered data

I am particularly interested at the moment in the functionality
of "MIX", and am (naively) prepared to try my hand at getting it
into R, but I am wondering generally if this or any of the others
("CAT", "PAN") have been tried in R by anyone.

With thanks, and best wishes to all,
Ted.


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E-Mail: (Ted Harding) <Ted.Harding at nessie.mcc.ac.uk>
Fax-to-email: +44 (0)870 167 1972
Date: 01-Apr-03                                       Time: 13:49:38
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I have an R port of MIX, but it is not 100% reliable. However, neither is
the S-PLUS original!  (We have found several bugs already.)

When I have a few spare days (if ever?) I will try again.  We got enough
to work for the project we needed it for.  Meanwhile,

http://www.stats.ox.ac.uk/pub/bdr/mix_1.0-1.tar.gz

has the current state.

Brian Ripley

On Tue, 1 Apr 2003 Ted.Harding at nessie.mcc.ac.uk wrote:
> Greetings folks,
> 
> Shafer's S-plus package "norm" for multiple imputation of
> missing values in multivariate normal data has been most
> kindly and usefully ported to R by Alvaro A. Novo.
> 
> Shafer's website
> 
>   http://www.stat.psu.edu/~jls/
> 
> lists four S-plus packages in all:
> 
>   NORM - multiple imputation of multivariate continuous data
> 
>   CAT - multiple imputation of multivariate categorical data
> 
>   MIX - multiple imputation of mixed continuous and categorical data
> 
>   PAN - multiple imputation of multivariate panel or clustered data
> 
> I am particularly interested at the moment in the functionality
> of "MIX", and am (naively) prepared to try my hand at getting it
> into R, but I am wondering generally if this or any of the others
> ("CAT", "PAN") have been tried in R by anyone.
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595