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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_1.1.zip, r-release: circda_1.1.zip, r-oldrel: circda_1.1.zip
macOS binaries: r-release (arm64): circda_1.1.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:

Please use the canonical form https://CRAN.R-project.org/package=circda to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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