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A log-likelihood ratio test for testing whether the sample mena direction is equal to some predefined one.
meandir.test(x, mu, B = 999)
This is an "htest"class object. Thus it returns a list including:
The test statistic value.
The degrees of freedom of the test. If bootstrap was employed this is "NA".
The p-value of the test.
A character with the alternative hypothesis.
A character with the test used.
A character vector with two elements.
A matrix with the data, unit vectors.
A unit vector with the hypothesized mean direction.
A number either 1, so no bootstrap calibration is performed or more than 1, so bootstrap calibration is performed.
Michail Tsagris.
R implementation and documentation: Michail Tsagris mtsagris@uoc.gr and Giorgos Athineou <gioathineou@gmail.com>.
The log-likelihood ratio test is employed.
Mardia, K. V. and Jupp, P. E. (2000). Directional statistics. Chicester: John Wiley & Sons.
vmf.mle, kent.mle, rayleigh
mu <- rnorm(5) mu <- mu / sqrt( sum(mu^2) ) x <- rvmf(100, mu, 10) meandir.test(x, mu, 1) meandir.test(x, mu, 499)
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