fisherB11 {circular}

B.11 Movements of sea stars

Description

Resultant directions of 22 sea stars 11 days after being displaced from their natural habitat.

Usage

data(fisherB11)
data(fisherB11c)

Format

fisherB11 a vector of 22 observations (in degrees). fisherB11c contains the same observations in a circular objects.

Source

G.J.G. Upton and B. Fingleton (1989) Spatial Data Analysis by Example. Volume 2. Categorical and Directional Data. New York: John Wiley as adapted from B. Pabst and H. Vicentini (1978) Dislocation experiments in the migrating seastar. Astropecten jonstoni. Marine Biology 48, 271-8.

See Also

N.I. Fisher (1993) Statistical analysis of circular data. Cambridge University Press. Pag. 245.

Examples

data(fisherB11c)
plot(fisherB11c, stack=TRUE, shrink=1.5)