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F cumulative distribution function
4 messages · Hsih-Te Yang, ONKELINX, Thierry, (Ted Harding) +1 more
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-Te
The 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.
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