circda: Circular Data Analysis

Functions to perform maximum likelihood estimation, model-based clustering, discriminant and regression analysis with a circular response variable. The standard textbook for such data is the "Directional Statistics" by Mardia, K. V. and Jupp, P. E. (2000). Other references include: Tsagris M. and Alzeley O. (2025). "Circular and spherical projected Cauchy distributions: A Novel Framework for Circular and Directional Data Modeling". Australian & New Zealand Journal of Statistics, 67(1): 77–103. <doi:10.1111/anzs.12434>. Tsagris M., Papastamoulis P. and Kato S. (2025). "Directional data analysis: spherical Cauchy or Poisson kernel-based distribution". Statistics and Computing, 35:51 <doi:10.1007/s11222-025-10583-0>. Alzeley O. and Tsagris (2026). "On the generalized circular projected Cauchy distribution". Mathematics, 14(11): 1934 <doi:10.3390/math14111934>.

Version:	1.1
Depends:	R (≥ 4.0)
Imports:	circular, Directional, glmnet, graphics, rangen, Rfast, stats
Suggests:	Rfast2
Published:	2026-09-15
DOI:	10.32614/CRAN.package.circda
Author:	Michail Tsagris [aut, cre]
Maintainer:	Michail Tsagris <mtsagris at uoc.gr>
License:	GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation:	no
CRAN checks:	circda results

Documentation:

Reference manual:

circda.html , circda.pdf

Downloads:

Package source:	circda_1.1.tar.gz
Windows binaries:	r-devel: circda_1.0.zip, r-release: circda_1.1.zip, r-oldrel: circda_1.1.zip
macOS binaries:	r-release (arm64): circda_1.0.tgz, r-oldrel (arm64): circda_1.1.tgz, r-release (x86_64): circda_1.1.tgz, r-oldrel (x86_64): circda_1.1.tgz
Old sources:	circda archive

Linking:

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