KRLS

Kernel-Based Regularized Least Squares

v1.7-0 · Jun 5, 2026 · GPL (>= 2)

Description

Implements Kernel-based Regularized Least Squares (KRLS), a machine learning method to fit multidimensional functions y = f(x) for regression and classification problems without relying on linearity or additivity assumptions. KRLS finds the best fitting function by minimizing the squared loss of a Tikhonov regularization problem, using Gaussian kernels as radial basis functions. For further details see Hainmueller and Hazlett (2014, <doi:10.1093/pan/mpt019>).

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13 OK

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Flavor	Status	Time
r-devel-linux-x86_64-debian-clang	OK	86.9s
r-devel-linux-x86_64-debian-gcc	OK	72.4s
r-devel-linux-x86_64-fedora-clang	OK	147.1s
r-devel-linux-x86_64-fedora-gcc	OK	196.3s
r-devel-windows-x86_64	OK	131s
r-oldrel-macos-arm64	OK	230s
r-oldrel-macos-x86_64	OK	159s
r-oldrel-windows-x86_64	OK	166s
r-patched-linux-x86_64	OK	86.8s
r-release-linux-x86_64	OK
r-release-macos-arm64	OK	56s
r-release-macos-x86_64	OK	151s
r-release-windows-x86_64	OK	130s

Additional Issues

MKL Details →

Check History

OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE May 6, 2026

NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

NOTE r-devel-linux-x86_64-debian-clang

CRAN incoming feasibility

Maintainer: ‘Jens Hainmueller <jhain@stanford.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = c("Jens", "Hainmueller", "Chad", "Hazlett"),
                      family = "(UCLA)",
                    
...[truncated]...
 = "cre",
                      email = "jhain@stanford.edu"))
as necessary.

Found the following \keyword or \concept entries
which likely give several index terms:
  File ‘krls.Rd’:
    \keyword{multivariate, smooth, kernels, machine le [TRUNCATED]

NOTE r-devel-linux-x86_64-debian-gcc

CRAN incoming feasibility

Maintainer: ‘Jens Hainmueller <jhain@stanford.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = c("Jens", "Hainmueller", "Chad", "Hazlett"),
                      family = "(UCLA)",
                    
...[truncated]...
 = "cre",
                      email = "jhain@stanford.edu"))
as necessary.

Found the following \keyword or \concept entries
which likely give several index terms:
  File ‘krls.Rd’:
    \keyword{multivariate, smooth, kernels, machine le [TRUNCATED]

Reverse Dependencies (2)

imports

InfluenceBorrowing qqkrls

Dependency Network

Version History

10 tracked

updated 1.7-0 ← 1.1-0 diff Jun 5, 2026

updated 1.1-0 ← 1.0-0 diff Apr 30, 2026

new 1.0-0 Mar 10, 2026

updated 1.0-0 ← 0.3-7 diff Jul 9, 2017

updated 0.3-7 ← 0.3-5 diff May 20, 2014

updated 0.3-5 ← 0.3-2 diff Dec 19, 2013

updated 0.3-2 ← 0.3-1 diff Aug 9, 2013

updated 0.3-1 ← 0.2 diff Aug 6, 2013

updated 0.2 ← 0.1 diff Dec 26, 2011

new 0.1 Sep 29, 2011