cort: Some Empiric and Nonparametric Copula Models

Provides S4 classes and methods to fit several copula models: The classic empirical checkerboard copula and the empirical checkerboard copula with known margins, see Cuberos, Masiello and Maume-Deschamps (2019) <doi:10.1080/03610926.2019.1586936> are proposed. These two models allow to fit copulas in high dimension with a small number of observations, and they are always proper copulas. Some flexibility is added via a possibility to differentiate the checkerboard parameter by dimension. The last model consist of the implementation of the Copula Recursive Tree algorithm, including the localised dimension reduction, which fits a copula by recursive splitting of the copula domain. We also provide an efficient way of mixing copulas, allowing to bag the algorithm into a forest, and a generic way of measuring d-dimensional boxes with a copula.

Version: 0.3.0
Imports: Rdpack, magrittr, methods, purrr, nloptr, osqp, Rcpp, furrr
LinkingTo: Rcpp
Suggests: covr, testthat (≥ 2.1.0), spelling, knitr, rmarkdown
Published: 2020-04-01
Author: Oskar Laverny ORCID iD [aut, cre]
Maintainer: Oskar Laverny <oskar.laverny at gmail.com>
BugReports: https://github.com/lrnv/cort/issues
License: MIT + file LICENSE
URL: https://github.com/lrnv/cort
NeedsCompilation: yes
Language: en-US
Materials: README NEWS
CRAN checks: cort results

Downloads:

Reference manual: cort.pdf
Vignettes: 1. Empirical Checkerboard Copula
2. The Copula Recursive Tree
3. Empirical Checkerboard Copula with known margins
4. Convex mixture of m-randomized checkerboards
Package source: cort_0.3.0.tar.gz
Windows binaries: r-prerelease: cort_0.3.0.zip, r-release: cort_0.3.0.zip, r-oldrel: cort_0.3.0.zip
macOS binaries: r-prerelease: cort_0.3.0.tgz, r-release: cort_0.3.0.tgz, r-oldrel: not available

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