VecStatGraphs2D (version 1.8)

VonMisesParameter: Calculation of von Mises concentration parameter of the azimuths

Description

This function calculates the von Mises concentration parameter from a set of input azimuths.

Usage

VonMisesParameter(azimuths)

Arguments

azimuths

Vector containing the values of the azimuths

Value

The von Mises concentration parameter of all input azimuths.

Details

One way to obtain a set of azimuths from X and Y coordinates of the vectors is to use the LoadData function. The von Mises concentration parameter measures the departure of the distribution from the uniform distribution. If this parameter tends to 0, then the distribution converges to the uniform distribution. If it tends to infinity, then the distribution is concentrated around the mean azimuth.

References

Fisher N.I. (1995) Statistical analysis of circular data. Cambridge. Cambridge University Press. Website http://gim.unex.es/VecStatGraphs2D/

See Also

MeanModule, MeanAzimuth, CircularVariance, CircularStandardDeviation,

CircularDispersal, KurtosisAzimuthCoefficient,

SkewnessAzimuthCoefficient, AllAzimuthStatistics.

Examples

   FileName<-system.file("data/RectangularData.txt", package="VecStatGraphs2D")
   dat<-LoadData(FileName, Type=2)
   azimuths<-dat[,2]
   VonMisesParameter(azimuths)