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 standard R pbeta(), qgamma(), ..., etc: {'"dpq"'-functions}.

Version: 0.5-4
Depends: R (≥ 4.0.0)
Imports: stats, graphics, methods, utils, sfsmisc (≥ 1.1-14)
Suggests: Rmpfr, DPQmpfr (≥ 0.3-1), gmp, MASS, mgcv, scatterplot3d, interp
Published: 2023-04-14
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, bd0.c}), R Foundation [cph] (src/qchisq-appr.c)
Maintainer: Martin Maechler <maechler at stat.math.ethz.ch>
BugReports: https://r-forge.r-project.org/tracker/?atid=2462&group_id=611
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
URL: https://specfun.r-forge.r-project.org/, https://r-forge.r-project.org/R/?group_id=611
NeedsCompilation: yes
Materials: NEWS
In views: Distributions
CRAN checks: DPQ results


Reference manual: DPQ.pdf
Vignettes: Noncentral Chi-Squared Probabilities – Algorithms in R
Computing Beta(a,b) for Large Arguments
log1pmx, bd0, stirlerr - Probability Computations in R
Asymptotic Tail Formulas For Gaussian Quantiles


Package source: DPQ_0.5-4.tar.gz
Windows binaries: r-devel: DPQ_0.5-4.zip, r-release: DPQ_0.5-4.zip, r-oldrel: DPQ_0.5-4.zip
macOS binaries: r-release (arm64): DPQ_0.5-4.tgz, r-oldrel (arm64): DPQ_0.5-4.tgz, r-release (x86_64): DPQ_0.5-4.tgz, r-oldrel (x86_64): DPQ_0.5-4.tgz
Old sources: DPQ archive

Reverse dependencies:

Reverse imports: DPQmpfr
Reverse enhances: Rmpfr


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