Hi, have a look at http://mathworld.wolfram.com/GeometricDistribution.html respectively http://mathworld.wolfram.com/NegativeBinomialDistribution.html with r = 1.
In R have a look at ?rnbinom with n = 1 and in your case: prob = 1-p hth Matthias >Hi > >I want to sample from a discrete random variable X, defined on >the non-negative integers, with > >prob(X=0) = (1-p) >prob(X=1) = (1-p)*p >... >prob(X=i)=(1-p)*p^i >... > > > >Before reinventing the wheel, >is there a ready-made R function to give me such a thing? > > >-- >Robin Hankin >Uncertainty Analyst >National Oceanography Centre, Southampton >European Way, Southampton SO14 3ZH, UK > tel 023-8059-7743 > >______________________________________________ >[email protected] mailing list >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > > -- StaMatS - Statistik + Mathematik Service Dr. rer. nat. Matthias Kohl Gottlieb-Keim-Straße 60 95448 Bayreuth Phone: +49 921 50736457 E-Mail: [EMAIL PROTECTED] Home: www.stamats.de ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
