RQK: Rational Quadratic Kriging

Fits the rational quadratic kriging models of Song and Joseph (2026) <doi:10.48550/arXiv.2610.18077> for deterministic and noisy responses using a rational quadratic kernel with anisotropic factor weights. Provides leave-one-out tuning, fast 'C++' prediction routines, and conformal prediction intervals. This work is supported by a U.S. NSF grant DMS-2310637.

Version: 1.0.0
Depends: R (≥ 4.3.0)
Imports: Rcpp (≥ 1.0.14), nloptr
LinkingTo: Rcpp, RcppArmadillo, nloptr
Suggests: testthat (≥ 3.0.0)
Published: 2026-10-24
DOI: 10.32614/CRAN.package.RQK (may not be active yet)
Author: Difan Song [aut, cre], V. Roshan Joseph [aut]
Maintainer: Difan Song <dfsong96 at gmail.com>
License: MIT + file LICENSE
NeedsCompilation: yes
Citation: RQK citation info
CRAN checks: RQK results

Documentation:

Reference manual: RQK.html , RQK.pdf

Downloads:

Package source: RQK_1.0.0.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): RQK_1.0.0.tgz, r-oldrel (arm64): RQK_1.0.0.tgz, r-release (x86_64): RQK_1.0.0.tgz, r-oldrel (x86_64): RQK_1.0.0.tgz

Linking:

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