yes, but that is not a good Review or Survey... thx
On Sun, Apr 22, 2012 at 9:47 PM, Bert Gunter <gunter.ber...@gene.com> wrote:
> As I believe I already told you, look at the CRAN Robust task view.
>
> -- Bert
>
> On Sun, Apr 22, 2012 at 6:29 PM, Michael <comtech....@gmail.com> wrote:
> > Even in R, there are so many of "robust PCA"... any survey or review of
> all
> > these different methods?
> >
> > On Sun, Apr 22, 2012 at 6:58 PM, Joshua Wiley <jwiley.ps...@gmail.com
> >wrote:
> >
> >> On Sun, Apr 22, 2012 at 4:43 PM, Michael <comtech....@gmail.com> wrote:
> >> > I actually tried "robustPca" in "pcaMethods" on bioconductor.
> >> >
> >> > It keeps giving me the warning "Input data is not complete"...
> >> >
> >> > Reading into the function:
> >> >
> >> > When there is no "NA"s, it will give this warning...
> >> >
> >> > It seems that there is a bug in this code...
> >> >
> >> > Is it reliable at all?
> >> >
> >> > ---------------------
> >> >
> >> >
> >> >> robustPcafunction (Matrix, nPcs = 2, verbose = interactive(), ...)
> >> > {
> >> > nas <- is.na(Matrix)
> >> > if (!any(nas) & verbose) {
> >> > cat("Input data is not complete.\n")
> >> > cat("Scores, R2 and R2cum may be inaccurate, handle with
> care\n")
> >> > }
> >>
> >> that seems to issue the notes when there are *not any missing* and
> >> verbose is TRUE. I would submit a bug report to the author.
> >>
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > On Fri, Apr 20, 2012 at 9:58 AM, Kevin Wright <kw.s...@gmail.com>
> wrote:
> >> >
> >> >> You can also have a look at the pcaMethods package on Bioconductor.
> >> >>
> >> >> Kevin
> >> >>
> >> >>
> >> >> On Thu, Apr 19, 2012 at 11:20 PM, Michael <comtech....@gmail.com>
> >> wrote:
> >> >>
> >> >>> Hi all,
> >> >>>
> >> >>> I found that the PCA gave chaotic results when there are big changes
> >> in a
> >> >>> few data points.
> >> >>>
> >> >>> Are there "improved" versions of PCA in R that can help with this
> >> problem?
> >> >>>
> >> >>> Please give me some pointers...
> >> >>>
> >> >>> Thank you!
> >> >>>
> >> >>> [[alternative HTML version deleted]]
> >> >>>
> >> >>> ______________________________________________
> >> >>> 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<
> http://www.r-project.org/posting-guide.html>
> >> <http://www.r-project.org/posting-guide.html>
> >> >>> and provide commented, minimal, self-contained, reproducible code.
> >> >>>
> >> >>
> >> >>
> >> >>
> >> >> --
> >> >> Kevin Wright
> >> >>
> >> >>
> >> >
> >> > [[alternative HTML version deleted]]
> >> >
> >> > ______________________________________________
> >> > 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<
> http://www.r-project.org/posting-guide.html>
> >> > and provide commented, minimal, self-contained, reproducible code.
> >>
> >>
> >>
> >> --
> >> Joshua Wiley
> >> Ph.D. Student, Health Psychology
> >> Programmer Analyst II, Statistical Consulting Group
> >> University of California, Los Angeles
> >> https://joshuawiley.com/
> >>
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > 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.
>
>
>
> --
>
> Bert Gunter
> Genentech Nonclinical Biostatistics
>
> Internal Contact Info:
> Phone: 467-7374
> Website:
>
> http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm
>
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