hdqr: Fast Algorithm for Penalized Quantile Regression

Implements an efficient algorithm for fitting the entire regularization path of quantile regression models with elastic-net penalties using a generalized coordinate descent scheme. The framework also supports SCAD and MCP penalties. It is designed for high-dimensional datasets and emphasizes numerical accuracy and computational efficiency. This package implements the algorithms proposed in Tang, Q., Zhang, Y., & Wang, B. (2022) <https://openreview.net/pdf?id=RvwMTDYTOb>.

Version: 1.0.2
Depends: R (≥ 3.5.0)
Imports: stats, Matrix, methods
Suggests: knitr, rmarkdown
Published: 2025-09-26
DOI: 10.32614/CRAN.package.hdqr
Author: Qian Tang [aut, cre], Yikai Zhang [aut], Boxiang Wang [aut]
Maintainer: Qian Tang <qian-tang at uiowa.edu>
License: GPL-2
NeedsCompilation: yes
Citation: hdqr citation info
CRAN checks: hdqr results

Documentation:

Reference manual: hdqr.html , hdqr.pdf
Vignettes: Getting started with hdqr (source, R code)

Downloads:

Package source: hdqr_1.0.2.tar.gz
Windows binaries: r-devel: hdqr_1.0.1.zip, r-release: hdqr_1.0.1.zip, r-oldrel: hdqr_1.0.1.zip
macOS binaries: r-release (arm64): hdqr_1.0.2.tgz, r-oldrel (arm64): hdqr_1.0.2.tgz, r-release (x86_64): hdqr_1.0.2.tgz, r-oldrel (x86_64): hdqr_1.0.2.tgz
Old sources: hdqr archive

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