Package: DPQ
Title: Density, Probability, Quantile ('DPQ') Computations
Version: 0.6-2
Date: 2026-09-04
VersionNote: Last CRAN: 0.6-1 on 2025-10-13; 0.6-0 on 2025-07-08; 0.5-9
        on 2024-08-23
Authors@R: c(person("Martin","Maechler", role=c("aut","cre"),
                    email="maechler@stat.math.ethz.ch", comment = c(ORCID = "0000-0002-8685-9910"))
  , person("Morten",   "Welinder",    role = "ctb", comment = "pgamma C code, see PR#7307, Jan. 2005; further pdhyper()")
  , person("Wolfgang", "Viechtbauer", role = "ctb", comment = "dtWV(), 2002")
  , person("Ross",     "Ihaka",       role = "ctb", comment = "src/qchisq_appr.c")
  , person("Marius",   "Hofert",      role = "ctb", comment = "lsum(), lssum()")
  , person("R-core", email = "R-core@R-project.org", role = "ctb", comment = "src/{dpq.h, algdiv.c, pnchisq.c, bd0.c}")
  , person("R Foundation", role = "cph", comment = "src/qchisq-appr.c")
  	     )
Description: 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. -- For several distribution
        functions, provide functions implementing formulas from
        Johnson, Kotz, and Kemp (1992) <doi:10.1002/bimj.4710360207>
        and Johnson, Kotz, and Balakrishnan (1995) for discrete or
        continuous distributions respectively. 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}.
Depends: R (>= 4.1.0)
Imports: stats, graphics, methods, utils, sfsmisc (>= 1.1-14)
Suggests: Rmpfr, DPQmpfr (>= 0.3-3), gmp, MASS, mgcv, scatterplot3d,
        interp, cobs
SuggestsNote: MASS::fractions() in ex | mgcv, scatt.., .., cobs: some
        tests/
License: GPL (>= 2) | file LICENSE
Encoding: UTF-8
URL: https://specfun.r-forge.r-project.org/,
        https://r-forge.r-project.org/R/?group_id=611,
        https://r-forge.r-project.org/scm/viewvc.php/pkg/DPQ/?root=specfun,
        svn://svn.r-forge.r-project.org/svnroot/specfun/pkg/DPQ
BugReports: https://r-forge.r-project.org/tracker/?atid=2462&group_id=611
Repository: https://r-forge.r-universe.dev
Date/Publication: 2026-10-17 20:19:26 UTC
RemoteUrl: https://github.com/r-forge/specfun
RemoteRef: HEAD
RemoteSha: 0bf8640d60ea395ea7eca35e74c8d5ebc3ca8b04
RemoteSubdir: pkg/DPQ
NeedsCompilation: yes
Packaged: 2026-10-19 13:54:00 UTC; root
Author: Martin Maechler [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-8685-9910>),
  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@stat.math.ethz.ch>