Description Version Author Licence Acknowledgements

The package ‘circular’ provides functions for the statistical analysis and graphics representation of circular data (observations which are angles). It originally started as a porting from S-plus to R of functions developed for the book: Circular Statistics, from "Topics in circular Statistics" (2001) S. Rao Jammalamadaka and A. SenGupta, World Scientific. Now, it has an S3 implementation and several new functions and datasets.

The version level of the package is given by the command
`packageDescription("circular")`

.
The most recent version of the package can be obtained from
the R-Forge repository at https://r-forge.r-project.org/projects/circular/

Claudio Agostinelli, Department of Mathematics University of Trento, Italy (http://www.science.unitn.it/~claudio)

Ulric Lund, Department of Statistics, California Polytechnic State University, San Luis Obispo, California, USA (http://statweb.calpoly.edu/ulund/)

This package and its documentation are usable under the terms of the
"GNU General Public License", a copy of which is distributed with the
package. While the software is freely usable, it would be appreciated
if a reference is inserted in publications or other work
which makes use of it; for this purpose, see the command
`citation("circular")`

.

The package has evolved through several versions, developed over some years.

Many thanks to all that points out bugs, provide suggestions and comments.

The functions `median`

and `medianHS`

are developed together with
Alessandro Gagliardi mailto:[email protected]

The functions `watson.wiliams.test`

and `wallraff.test`

are
developed by Jean-Olivier Irisson (http://jo.irisson.com/)

The functions `dcarthwrite`

, `dgenvonmises`

,
`(d,r)katojones`

, `djonespewsey`

are developed by Federico Rotolo

The function `rose.diag`

has contribution by Hiroyoshi Arai (mailto:[email protected])

The function `windrose`

is developed by Matthew Pocernich http://www.rap.ucar.edu/staff/pocernic/

Dataset `swallows`

is kindly provided by Dimitri Giunchi http://unimap.unipi.it/cercapersone/dettaglio.php?ri=2504&template=dettaglio.tpl

The function `bw.circular`

is developed together with Eduardo Garcia Portugues mailto:

If I miss to report your contribution please let me know by email at mailto:[email protected]

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