Peter Ruckdeschel
2004-Sep-27 18:46 UTC
[R] [R-pkgs] new version of package "distr" available
We would like to announce the availability on CRAN of a new version (1.4) of our package "distr" . ----------------------------------------------------------------------------------------- Changes from 1.3 to 1.4 -To avoid name collisions with short forms for TRUE and FALSE: classes T and F (T- and F-distributions) renamed to Td and Fd -The package is now loaded as a binary => considerable speed gain -Using subsititute, the bodies of the r,d,p,q-function-slots distributions show the parameter values with which they were generated -Convolutions and applications of the math group may now be traced in r-slot of a distribution object, compare r(sin(Norm()) + cos(Unif() * 3 + 2)) -Parameters of a distribution (mean, sd, etc) are now tested on length 1 *we see the objects as implementations of univariate distributions, so vectors make no sense here; rather one could gather several objects with possibly different parameters to a vector of distributions. Of course, the original R-functions rnorm etc remain unchanged and still allow for vector-valued parameters. * -Classes "Parameter" , "Distribution" , "UnivariateDistribution" are no longer VIRTUAL -"AbscontParameter" and "DiscreteParameter" are replaced by "Parameter" -Type of slots d,p,q and param is changed to "OptionalFunction" and "OptionalParameter" respectively ----------------------------------------------------------------------------------------- Short Description of "distr": "distr" is to provide a conceptual treatment of random variables (r.v.'s) by means of S4--classes. A virtual mother class "Distribution" is introduced. All distributions of the "base" package are implemented as subclasses of either "AbscontDistribution" or "DiscreteDistribution". Using these classes, we also provide (default) methods to automatically generate the image distributions under unary mathematical operations as well as a general convolution algorithm. Additionally, we also provide classes for a standardized treatment of simulations (also under contaminations) and evaluations of statistical procedures on such simulations. ----------------------------------------------------------------------------------------- DESCRIPTION: Package: distr Version: 1.4 Date: 2004/09/23 Title: distr Authors: Peter Ruckdeschel <peter.ruckdeschel at uni-bayreuth.de>, Matthias Kohl <matthias.kohl at uni-bayreuth.de>, Thomas Stabla <statho3 at web.de>, Florian Camphausen <fcampi at gmx.de> Maintainer: Peter Ruckdeschel <peter.ruckdeschel at uni-bayreuth.de> Description: S4 Classes for Distributions Depends: R (>= 1.9.0), (versions for <=1.8.x, on URL cited below), setRNG (>= 2004.3-1) License: GPL version 2 or later URL: http://www.uni-bayreuth.de/departments/math/org/mathe7/DISTR/ Reference: http://www.uni-bayreuth.de/departments/math/org/mathe7/DISTR/distr.pdf We look forward to receiving questions, comments and suggestions Peter Ruckdeschel Matthias Kohl Thomas Stabla Florian Camphausen _______________________________________________ R-packages mailing list R-packages at stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-packages
Possibly Parallel Threads
- new version of package "distr" available
- after package reorganization: version 1.6 of package "distr" available; new packages "distrEx", "distrSim", "distrTEst", "RandVar"
- after package reorganization: version 1.6 of package "distr" available; new packages "distrEx", "distrSim", "distrTEst", "RandVar"
- version 1.5 of package "distr" available
- version 1.5 of package "distr" available