That is right. It is a part of materials engineering. Could say it’s a
standard method in it. Better description is always on Wikipedia :)


http://en.wikipedia.org/wiki/Rainflow-counting_algorithm



Have found packs for all other big statistic software like Matlab or Diadem
but none for R. And I thought R can do all instead of making coffee.



2012/10/4 Bert Gunter <gunter.berton@gene.com>

> I'm going to make a wild guess that this might have something to do
> with "bump hunting" =local conditional extrema. If so, the prim
> package might be applicable.
>
> Otherwise ("...cycles in time series") time series methods might be
> appropriate.
>
> But I basically agree with others that the OP has not clearly
> specified the issue.
>
> Cheers,
> Bert
>
> On Thu, Oct 4, 2012 at 10:34 AM, Marc Schwartz <marc_schwartz@me.com>
> wrote:
> > A quick Google search suggests that the methods are used in material
> fatigue studies where varying stress loads are placed upon the material,
> which puts this into a materials engineering context.
> >
> > Using rseek.org does not give any joy. Perhaps someone with experience
> in that domain will chime in.
> >
> > Regards,
> >
> > Marc Schwartz
> >
> > On Oct 4, 2012, at 10:27 AM, R. Michael Weylandt <
> michael.weylandt@gmail.com> wrote:
> >
> >> R is used by many many folks, and most of us don't have the domain
> >> knowledge to make heads or tails of what you're mentioning here.
> >> You'll need to greatly clarify and perhaps ask on the appropriate
> >> R-SIG-* list. (Ecology maybe?) Perhaps rseek.org is also of help.
> >>
> >> Cheers,
> >> Michael
> >>
> >> On Thu, Oct 4, 2012 at 1:19 PM, Dandy Ehlert <dandy.ehlert@gmail.com>
> wrote:
> >>> Hello
> >>>
> >>>
> >>>
> >>> I got some question about R. Im searching for a function or R-code
> which
> >>> makes me some collectives. In the literature they are called:
> >>>
> >>>
> >>>
> >>>> level crossing counting
> >>>
> >>>> rainflow counting
> >>>
> >>>> range pair counting
> >>>
> >>>
> >>>
> >>> Cant believe that’s not available for R. May I just looking for the
> wrong
> >>> word.
> >>>
> >>>
> >>> There functions are used to count the cycles (Range and Means) of a
> time
> >>> serie.
> >>>
> >>>
> >>>
> >>> Thx for helping :)
> >
> > ______________________________________________
> > 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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