qqkrls

1.0.0

Quantile-on-Quantile Kernel Regularized Least Squares

0packages depend

607downloads / year

43.7%test coverage

13/13checks pass

Overview

About

Maintained by Merwan RoudaneFirst published 2026-06-011 releasesCRAN page ↗GitHub ↗

Implements Quantile-on-Quantile Kernel-Based Regularized Least Squares (QQKRLS) as in Adebayo, Ozkan and Eweade (2024) doi:10.1016/j.jclepro.2024.140832. Combines Kernel-Based Regularized Least Squares (KRLS) of Hainmueller and Hazlett (2014) doi:10.1093/pan/mpt019 with the Quantile-on-Quantile regression of Sim and Zhou (2015) doi:10.1016/j.jbankfin.2015.01.013: for each quantile theta of the independent variable the response is fit by KRLS on the corresponding sub-sample and the tau-quantile of the resulting pointwise marginal effects yields beta(theta, tau). Standard errors come from a paired bootstrap. Visualisations use the 'MATLAB' 'Parula' colour map by default.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("qqkrls", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("merwanroudane/qqkrlsr")

Development version from merwanroudane/qqkrlsr. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-qqkrls

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-qqkrls

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-qqkrls

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 2.3 min · r-release-macos-x86_64

Code health

Yes

Tests · ratio 0.04

43.7%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-06-02
7 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 81%
Return-value docs: 100%
References docs: 20%

Downloads

607

CRAN downloads in the past year

Rank #19,846 · ~2/day · ~51/mo

Releases R versions

Daily download trend is not available in this view yet.

21330 days

60790 days

6071 year

Compare downloads with other packages →

Also on1 r2u6 autocran

Repository

GitHub ↗ merwanroudane/qqkrlsr

1Stars

0Forks

0Open issues

0Open PRs

0Releases

4Commits

1Contributors

4 commits · Last activity 2026-06-01

Stars over time

2026-07-07 · 02026-07-09 · 1

Repository practices

Upstream repositoryBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/merwanroudane/qqkrlsr on 2026-07-19.

CRAN release process (1)

cran-comments.md

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (5)

KRLS plotlystatsutilsgrDevices

LinkingTo (0)

none

Suggests (3)

knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (4)

Maintainer (1)

Merwan Roudane

Author, Maintainer, Copyright holder

Authors (1)

Merwan Roudane

Author, Maintainer, Copyright holder

Contributors (3)

Tomiwa Sunday Adebayo

Contributor

Jens Hainmueller

Contributor

Chad Hazlett

Contributor

Merwan Roudane

Author, Maintainer, Copyright holder

Package Timeline

1 release. R releases are shown for context.

1.0.0Latest
2026-06-01 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-06-01
Total releases: 1 / 1 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

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