circular: fisherB20 – R documentation

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fisherB20

B.20 Movements of blue periwinkles.

Description

Distances 'x' and directions 'theta' by small blue periwinkles, Nodilittorina unifasciata, after they had been transplanted downshore from the height at which they normaly live.

Usage

data(fisherB20)
data(fisherB20c)

Format

fisherB20 is a data.frame of integer value. fisherB20c is a data.frame that contains the same observations, but in the first column, the data is a circular object.

Source

N.I. Fisher (1993) pag. 252-253. Data kindly supplied by Dr A. Underwood and Ms G. Chapman.

References

N.I. Fisher (1993) Statistical analysis of circular data. Cambridge University Press.

Examples

data(fisherB20)
data(fisherB20c)
par(mfcol=c(1,3))
plot(fisherB20c$theta, xlab=expression(theta))
boxplot(fisherB20c$x, xlab="x")
plot(c(fisherB20$x, fisherB20$x), c(fisherB20$theta,
  fisherB20$theta+360), xlab="x", ylab=expression(theta))

circular

Circular Statistics

v0.4-93

GPL-2

Authors

Ulric Lund <ulund@calpoly.edu> [aut], Claudio Agostinelli <claudio.agostinelli@unitn.it> [aut, cre], Hiroyoshi Arai <h_arai@aoni.waseda.jp> [ctb], Alessando Gagliardi <gagliardi@stud.unive.it> [ctb], Eduardo Garcia Portugues <edgarcia@est-econ.uc3m.es> [ctb], Dimitri Giunchi <dimitri.giunchi@unipi.it> [ctb], Jean-Olivier Irisson <irisson@normalesup.org> [ctb], Matthew Pocernich <pocernic@ucar.edu> [ctb], Federico Rotolo [ctb]

Initial release

2017-06-26