Dear Sir or Madam:
Dose anyone know the R function which corresponds to "fcdf", a "F
cumulative
distribution function" of Matlab?
http://esra.univ-paris1.fr/matlab5/toolbox/stats/fcdf.html
Please guide me how to get this function if it is available.
..... or code it ab initio if no function in R
language
Thanks for kind reply further.
Hsih-Te
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Have a look at qf() and pf() HTH, Thierry ------------------------------------------------------------------------ ---- ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek team Biometrie & Kwaliteitszorg Gaverstraat 4 9500 Geraardsbergen Belgium Research Institute for Nature and Forest team Biometrics & Quality Assurance Gaverstraat 4 9500 Geraardsbergen Belgium tel. + 32 54/436 185 Thierry.Onkelinx at inbo.be www.inbo.be To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey> -----Oorspronkelijk bericht----- > Van: r-help-bounces at r-project.org > [mailto:r-help-bounces at r-project.org] Namens Hsih-Te Yang > Verzonden: dinsdag 12 oktober 2010 15:49 > Aan: r-help at r-project.org > Onderwerp: [R] F cumulative distribution function > > Dear Sir or Madam: > > Dose anyone know the R function which corresponds to "fcdf", > a "F cumulative distribution function" of Matlab? > http://esra.univ-paris1.fr/matlab5/toolbox/stats/fcdf.html > > Please guide me how to get this function if it is available. > ..... or code it ab initio if no > function in R language > > Thanks for kind reply further. > > Hsih-Te > > [[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. >
On 12-Oct-10 13:49:07, Hsih-Te Yang wrote:> Dear Sir or Madam: > > Dose anyone know the R function which corresponds to "fcdf", > a "F cumulative distribution function" of Matlab? > http://esra.univ-paris1.fr/matlab5/toolbox/stats/fcdf.html > > Please guide me how to get this function if it is available. > ..... or code it ab initio if no function in R language > > Thanks for kind reply further. > Hsih-TeThe equibalent in R of P = fcdf(X,V1,V2) (as in your URL) is P <- pf(X,V1,V2) where X,V2,V2 should be vectors of the same length. Note that R's pf offers additional functionality, such as a non-centrality paramater for the no-centgral F distribution. Enter '?pf' for more detailed information. Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <ted.harding at wlandres.net> Fax-to-email: +44 (0)870 094 0861 Date: 12-Oct-10 Time: 15:22:18 ------------------------------ XFMail ------------------------------
Hi, see ?pf Generally in R '(d/p/q/r)distribution' stands for density, cdf, quantiles and random numbers for a given distribution as norm, t, unif, chisq etc hth Am 12.10.2010 15:49, schrieb Hsih-Te Yang:> Dear Sir or Madam: > > Dose anyone know the R function which corresponds to "fcdf", a "F cumulative > distribution function" of Matlab? > http://esra.univ-paris1.fr/matlab5/toolbox/stats/fcdf.html > > Please guide me how to get this function if it is available. > ..... or code it ab initio if no function in R > language > > Thanks for kind reply further. > > Hsih-Te > > [[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.-- Eik Vettorazzi Institut f?r Medizinische Biometrie und Epidemiologie Universit?tsklinikum Hamburg-Eppendorf Martinistr. 52 20246 Hamburg T ++49/40/7410-58243 F ++49/40/7410-57790