[R] Multiple imputation

John Fox jfox at mcmaster.ca
Fri Jun 13 04:23:51 CEST 2003


Dear Jonck,

In addition, there are ports of both norm and mix in the 
contributed-packages section of CRAN.

Regards,
  John

At 07:48 PM 6/12/2003 -0400, Frank E Harrell Jr wrote:
>On Thu, 12 Jun 2003 23:57:45 +0200
>Jonck van der Kogel <jonck at vanderkogel.net> wrote:
>
> > Hi all,
> > I'm currently working with a dataset that has quite a few missing
> > values and after some investigation I figured that multiple imputation
> > is probably the best solution to handle the missing data in my case. I
> > found several references to functions in S-Plus that perform multiple
> > imputation (NORM, CAT, MIX, PAN). Does R have corresponding functions?
> > I searched the archives but was not able to find anything conclusive
> > there.
> > Any help on this subject is much appreciated.
> > Thanks, Jonck
> >
> > ______________________________________________
> > R-help at stat.math.ethz.ch mailing list
> > https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>
>Look at the aregImpute function in the Hmisc package 
>(http://hesweb1.med.virginia.edu/biostat/s/Hmisc.html).  aregImpute uses 
>the bootstrap, predictive mean matching, and flexible additive regression 
>models to do multiple imputation.  In one simulation study it performs as 
>well as MICE but it runs much faster and does not assume linearity in the 
>imputation models.  I hope that someday we'll have simulation studies 
>comparing aregImpute with NORM.
>---
>Frank E Harrell Jr              Prof. of Biostatistics & Statistics
>Div. of Biostatistics & Epidem. Dept. of Health Evaluation Sciences
>U. Virginia School of Medicine  http://hesweb1.med.virginia.edu/biostat
>
>______________________________________________
>R-help at stat.math.ethz.ch mailing list
>https://www.stat.math.ethz.ch/mailman/listinfo/r-help

-----------------------------------------------------
John Fox
Department of Sociology
McMaster University
Hamilton, Ontario, Canada L8S 4M4
email: jfox at mcmaster.ca
phone: 905-525-9140x23604
web: www.socsci.mcmaster.ca/jfox




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