Dear colleagues can somebody help me by showing how we can compute m-estimators in R? thanks Dr. Iasonas Lamprianou Assistant Professor (Educational Research and Evaluation) Department of Education Sciences European University-Cyprus P.O. Box 22006 1516 Nicosia Cyprus Tel.: +357-22-713178 Fax: +357-22-590539 Honorary Research Fellow Department of Education The University of Manchester Oxford Road, Manchester M13 9PL, UK Tel. 0044 161 275 3485 iasonas.lamprianou at manchester.ac.uk
Hi r-help-bounces at r-project.org napsal dne 06.08.2010 09:10:44:> > Dear colleagues > > can somebody help me by showing how we can compute m-estimators in R?Open your favourite browser. Open CRAN page Go to search Input "m-estimators" as search term. You will got about 3500 hits, definitely some of them will be relevant. Regards Petr> > thanks > > Dr. Iasonas Lamprianou > > > Assistant Professor (Educational Research and Evaluation) > Department of Education Sciences > European University-Cyprus > P.O. Box 22006 > 1516 Nicosia > Cyprus > Tel.: +357-22-713178 > Fax: +357-22-590539 > > > Honorary Research Fellow > Department of Education > The University of Manchester > Oxford Road, Manchester M13 9PL, UK > Tel. 0044 161 275 3485 > iasonas.lamprianou at manchester.ac.uk > > > > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html> and provide commented, minimal, self-contained, reproducible code.
Hi:
Try (install package sos first if necessary):
library(sos)
findFn('M-estimator')
This produced 34 hits on my machine (not quite as productive as Petr's
search :), but it identifies a few packages that contain functions for
robust estimation. It's also a good way to get familiar with a very useful
search mechanism to find R functions in the maze of available packages.
Typing
RSiteSearch('M-estimator')
at the R prompt is another way to search within R.
HTH,
Dennis
On Fri, Aug 6, 2010 at 12:10 AM, Iasonas Lamprianou
<lamprianou@yahoo.com>wrote:
>
> Dear colleagues
>
> can somebody help me by showing how we can compute m-estimators in R?
>
> thanks
>
> Dr. Iasonas Lamprianou
>
>
> Assistant Professor (Educational Research and Evaluation)
> Department of Education Sciences
> European University-Cyprus
> P.O. Box 22006
> 1516 Nicosia
> Cyprus
> Tel.: +357-22-713178
> Fax: +357-22-590539
>
>
> Honorary Research Fellow
> Department of Education
> The University of Manchester
> Oxford Road, Manchester M13 9PL, UK
> Tel. 0044 161 275 3485
> iasonas.lamprianou@manchester.ac.uk
>
>
>
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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check the robustbase package and rlm or hubers in MASS You'll need to know which m-estimator you want, but both those packages include at least some m-estimators. Strictly, so does the base package; the mean is an m-estimator. Just not a very robust one! S Ellison>>> Iasonas Lamprianou <lamprianou at yahoo.com> 06/08/2010 08:10:44 >>>Dear colleagues can somebody help me by showing how we can compute m-estimators in R? thanks Dr. Iasonas Lamprianou Assistant Professor (Educational Research and Evaluation) Department of Education Sciences European University-Cyprus P.O. Box 22006 1516 Nicosia Cyprus Tel.: +357-22-713178 Fax: +357-22-590539 Honorary Research Fellow Department of Education The University of Manchester Oxford Road, Manchester M13 9PL, UK Tel. 0044 161 275 3485 iasonas.lamprianou at manchester.ac.uk ______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ******************************************************************* This email and any attachments are confidential. Any use...{{dropped:8}}