Test of equality of the concentration parameters for circular data: A test for testing the equality of the concentration parameter among g samples, where g >= 2 for ciruclar data
Description
A test for testing the equality of the concentration parameter among g samples, where g >= 2 for ciruclar data.
Usage
conc.test(u, ina, rads = FALSE)
Value
A list including:
mess
A message informing the use of the test statistic used.
res
A numeric vector containing the value of the test statistic and its associated p-value.
Arguments
u
A numeric vector containing the values of all samples.
ina
A numerical variable or factor indicating the groups of each value.
rads
If the data are in radians this should be TRUE and FALSE otherwise.
Author
Michail Tsagris.
R implementation and documentation: Michail Tsagris mtsagris@uoc.gr and Giorgos Athineou <gioathineou@gmail.com>.
Details
This test works for circular data.
References
Mardia, K. V. and Jupp, P. E. (2000). Directional statistics. Chicester: John Wiley & Sons.