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DPQ  

Density, Probability, Quantile ('DPQ') Computations
View on CRAN: Click here


Download and install DPQ package within the R console
Install from CRAN:
install.packages("DPQ")

Install from Github:
library("remotes")
install_github("cran/DPQ")

Install by package version:
library("remotes")
install_version("DPQ", "0.6-1")



Attach the package and use:
library("DPQ")
Maintained by
Martin Maechler
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2019-10-02
Latest Update: 2025-07-08
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) 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}.
How to cite:
Martin Maechler (2019). DPQ: Density, Probability, Quantile ('DPQ') Computations. R package version 0.6-1, https://cran.r-project.org/web/packages/DPQ. Accessed 27 Jun. 2026.
Previous versions and publish date:
0.3-3 (2019-10-02 11:00), 0.3-5 (2019-10-21 10:00), 0.4-1 (2020-06-20 01:00), 0.4-2 (2020-11-09 13:30), 0.4-3 (2021-05-05 20:10), 0.4-4 (2021-05-27 13:00), 0.5-0 (2021-11-24 07:30), 0.5-1 (2021-12-13 12:40), 0.5-2 (2022-06-11 00:00), 0.5-3 (2022-12-01 17:40), 0.5-4 (2023-04-14 11:20), 0.5-5 (2023-06-23 21:10), 0.5-6 (2023-09-07 11:10), 0.5-7 (2023-11-03 12:20), 0.5-8 (2023-12-01 23:10), 0.5-9 (2024-08-24 00:10), 0.6-0 (2025-07-08 15:50)
Other packages that cited DPQ R package
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Complete documentation for DPQ
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