DPQ: Density, Probability, Quantile ('DPQ') Computations

Computations for approximations and alternatives for the 'DPQ' (Density (pdf), Probability (cdf) and Quantile) functions for probability distributions in R. Primary focus is on (central and non-central) beta, gamma and related distributions such as the chi-squared, F, and t. – This is for the use of researchers in these numerical approximation implementations, notably for my own use in order to improve R‘s own pbeta(), qgamma(), ..., etc: {’"dpq"'-functions}. – We plan to complement with 'DPQmpfr' to be suggested later.

Version: 0.4-1
Depends: R (≥ 3.6.0)
Imports: stats, graphics, methods, utils, sfsmisc
Suggests: Rmpfr, Matrix, MASS, mgcv, scatterplot3d, akima
Published: 2020-06-19
Author: Martin Maechler ORCID iD [aut, cre], Morten Welinder [ctb] (pgamma C code, see PR#7307, Jan. 2005; further pdhyper()), Wolfgang Viechtbauer [ctb] (dtWV(), 2002), Ross Ihaka [ctb] (src/qchisq_appr.c), Marius Hofert [ctb] (lsum(), lssum()), R-core [ctb] (src/{dpq.h, algdiv.c, pnchisq.c}), R Foundation [cph] (src/qchisq-appr.c)
Maintainer: Martin Maechler <maechler at stat.math.ethz.ch>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: yes
Materials: NEWS
CRAN checks: DPQ results


Reference manual: DPQ.pdf
Vignettes: Noncentral Chi-Squared Probabilities – Algorithms in \R
Computing Beta(a,b) for Large Arguments
Package source: DPQ_0.4-1.tar.gz
Windows binaries: r-devel: DPQ_0.4-1.zip, r-release: DPQ_0.4-1.zip, r-oldrel: DPQ_0.4-1.zip
macOS binaries: r-release: DPQ_0.4-1.tgz, r-oldrel: DPQ_0.4-1.tgz
Old sources: DPQ archive


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