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. -- For several distribution functions, provide functions implementing formulas from Johnson, Kotz, and Kemp (1992) 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}.

Reference manual

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install.packages("DPQ")

0.6-2 by Martin Maechler, a month ago

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

Report a bug at https://r-forge.r-project.org/tracker/?atid=2462&group_id=611

Browse source code at https://github.com/cran/DPQ

Authors: Martin Maechler [aut, cre] (ORCID: , 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)

Documentation:   PDF Manual  

GPL (>= 2) | file LICENSE license

Imports stats, graphics, methods, utils, sfsmisc

Suggests Rmpfr, DPQmpfr, gmp, MASS, mgcv, scatterplot3d, interp, cobs

Imported by BFF, DPQmpfr.

Enhanced by Rmpfr.

See at CRAN

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