assaedi76 assaedi76
2013-May-26 07:06 UTC
[R] Parameters estimation for extreme value models
Thanks in advance R users I have time series data and I need to estimate the parameters involved in three different models for generalized extreme values Model 1: a, b, c are constants. Model 2: a(t)=B0+B1 t, but b, c are constants Model 3: c(t)Exp(B0+B1 t) but a, b are constants Where a, b and c are location, scale and shape parameter respectively; t is time. Regards [[alternative HTML version deleted]]
Well, then, you had better get busy and stop posting here. To learn why, read the Posting Guide. Some pointers: a) No homework help here. b) No posting in HTML. c) This list is for questions about R, not statements about your needs. --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnewmil at dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity. assaedi76 assaedi76 <assaedi76 at yahoo.com> wrote:>Thanks in advance R >users > >? > >I have time series data >and I need to estimate the parameters involved in three different >models for >generalized extreme values > >? > >Model 1: ?a, b, >c?are constants. > >? > >Model 2:?a(t)=B0+B1 t, >but? b, c?are constants > >? > >Model 3:?c(t)>Exp(B0+B1 t) ?but?a, b?are constants > >? > >Where a, b?and?c?are location, scale and >shape parameter respectively; t is time. > > > > > > > >Regards? > [[alternative HTML version deleted]] > > > >------------------------------------------------------------------------ > >______________________________________________ >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.