Summary statistics for circular data

Description

It produces a few summary measures for circular data.

Usage

1
circ.summary(u, rads = FALSE, plot = TRUE)

Arguments

u

The circular data.

rads

If the data are in rads, then this should be TRUE, otherwise FALSE.

plot

If you want to see the data plotted on a cicrle make this TRUE.

Details

It returns the circular mean, mean resultant length, variance, standard deviation and concentration parameter. So, basically it returns the estimated values of the parameters of the von Mises distribution.

Value

A list including:

mesos

The circular mean direction.

confint

The 95% confidence interval for the circular mean direction.

kappa

The concentration parameter.

MRL

The mean resultant length.

circvariance

The circular variance.

circstd

The circular standard deviation.

Author(s)

Michail Tsagris

R implementation and documentation: Michail Tsagris <mtsagris@yahoo.gr> and Giorgos Athineou <athineou@csd.uoc.gr>

References

Mardia, K. V. and Jupp, P. E. (2000). Directional statistics. Chicester: John Wiley & Sons.

See Also

rvonmises, vm.kde, vmf, group.vm, hcf.circaov

Examples

1
2
x <- rvonmises(50, 2.5, 15, rads = TRUE)
circ.summary(x, rads = TRUE, plot = TRUE)

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