The hardware and bandwidth for this mirror is donated by dogado GmbH, the Webhosting and Full Service-Cloud Provider. Check out our Wordpress Tutorial.
If you wish to report a bug, or if you are interested in having us mirror your free-software or open-source project, please feel free to contact us at mirror[@]dogado.de.

qqkrls: Quantile-on-Quantile Kernel Regularized Least Squares

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.

Version: 1.0.0
Depends: R (≥ 3.5.0)
Imports: KRLS (≥ 1.0-0), plotly (≥ 4.0.0), stats, utils, grDevices
Suggests: knitr, rmarkdown, testthat (≥ 3.0.0)
Published: 2026-06-01
DOI: 10.32614/CRAN.package.qqkrls (may not be active yet)
Author: Merwan Roudane [aut, cre, cph], Tomiwa Sunday Adebayo [ctb] (Original QQKRLS methodology), Jens Hainmueller [ctb] (Original KRLS methodology), Chad Hazlett [ctb] (Original KRLS methodology)
Maintainer: Merwan Roudane <merwanroudane920 at gmail.com>
BugReports: https://github.com/merwanroudane/qqkrlsr/issues
License: GPL-3
URL: https://github.com/merwanroudane/qqkrlsr
NeedsCompilation: no
Citation: qqkrls citation info
Materials: NEWS
CRAN checks: qqkrls results

Documentation:

Reference manual: qqkrls.html , qqkrls.pdf

Downloads:

Package source: qqkrls_1.0.0.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): qqkrls_1.0.0.tgz, r-oldrel (arm64): qqkrls_1.0.0.tgz, r-release (x86_64): qqkrls_1.0.0.tgz, r-oldrel (x86_64): qqkrls_1.0.0.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=qqkrls to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.