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.