search for: ddirichlet

...done Warning in download.packages(unique(pkgs), destdir = tmpd, available = available, : no package 'bayesm' at the repositories The package is certainly there. It could be my version of linux, I know. All I want to do is sample from a dirichlet prior, so I want rdirichlet and ddirichlet commands basically. If anyone can help or suggest an alternate package that would be great. E -- View this message in context: http://www.nabble.com/bayesm-package-not-downloading-via-any-mirror-or-repository-tp20906495p20906495.html Sent from the R help mailing list archive at Nabble.com.

...he package "gtools", I get (hier.part is not included): > gtools:: <TAB> gtools::addLast gtools::ask gtools::assert gtools::binsearch gtools::capture gtools::checkRVersion gtools::combinations gtools::ddirichlet gtools::defmacro gtools::even gtools::foldchange gtools::foldchange2logratio gtools::inv.logit gtools::invalid gtools::keywords gtools::logit gtools::logratio2foldchange gtools::mixedorder gtools...

Hi all, I have a problem using rdirichlet{gtools}. For Dir( a1, a2, ..., a_n), its mode can be found at $( a_i -1)/ ( \sum_{i}a_i - n)$; The means are $a_i / (\sum_{i} a_i ) $; I tried to study the above properties using rdirichlet from gtools. The code are: ############## library(gtools) alpha = c(1,3,9) #totoal=13 mean.expect = c(1/13, 3/13, 9/13) mode.expect = c(0, 2/10, 8/10) #

Dear Gregory R. Warnes, I'm a phd student in statistics, at the University of Milano Bicocca. I'm interested to the methods of estimate the parameters of the Dirichlet distribution. Do you have implemented an algorithm in R? If so, can you give me the script? or, in general, some helps? Best Regards Gianna --------------------------------------------------------------- Gianna Monti