dkumar = function(x,a,b) a*b*(x^(a-1))*((1-x^a)^(b-1)) pkumar = function(x,a,b) 1-(1-x^a)^b
(I've based this entirely on the wikipedia entry on the Kumaraswamy distribution [http://en.wikipedia.org/wiki/Kumaraswamy_distribution], so best to check both my replication of the formula there and the accuracy of the wikipedia entry itself) On Tue, May 12, 2009 at 6:37 AM, Debbie Zhang <debbie0...@hotmail.com> wrote: > > Dear R users, > > Does anyone know how to write function for Kumaraswamy distribution in R? > Since I cannot write dkumar, pkumar, etc. in R. > > > > Please help. > > > > Thanks a lot, > > Debbie > > _________________________________________________________________ > [[elided Hotmail spam]] > > [[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. > -- Mike Lawrence Graduate Student Department of Psychology Dalhousie University Looking to arrange a meeting? Check my public calendar: http://tr.im/mikes_public_calendar ~ Certainty is folly... I think. ~ ______________________________________________ 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.
