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QF  

Density, Cumulative and Quantile Functions of Quadratic Forms
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("QF", "0.0.9")



Attach the package and use:
library("QF")
Maintained by
Aldo Gardini
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2020-11-11
Latest Update: 2025-03-27
Description:
The computation of quadratic form (QF) distributions is often not trivial and it requires numerical routines. The package contains functions aimed at evaluating the exact distribution of quadratic forms (QFs) and ratios of QFs. In particular, we propose to evaluate density, quantile and distribution functions of positive definite QFs and ratio of independent positive QFs by means of an algorithm based on the numerical inversion of Mellin transforms.
How to cite:
Aldo Gardini (2020). QF: Density, Cumulative and Quantile Functions of Quadratic Forms. R package version 0.0.9, https://cran.r-project.org/web/packages/QF. Accessed 06 Aug. 2026.
Previous versions and publish date:
(2026-07-09 08:17), 0.0.2 (2020-11-11 11:00), 0.0.3 (2020-11-17 09:00), 0.0.4 (2021-02-18 10:10), 0.0.6 (2021-10-22 12:00)
Other packages that cited QF R package
View QF citation profile
Other R packages that QF depends, imports, suggests or enhances
Complete documentation for QF
Functions, R codes and Examples using the QF R package
Some associated functions: QF . QF_ratio . compute_MellinQF . compute_MellinQF_ratio . pQF_depratio . print.MellinQF . print.MellinQF_ratio . 
Some associated R codes: Distributions_QF.R . Distributions_QF_ratio.R . Distributions_depratio.R . MellinQF.R . MellinQF_ratio.R . RcppExports.R . usadyn.R .  Full QF package functions and examples
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