VecStatGraphs2D (version 1.8)

AllAzimuthStatistics: Calculation of all statistics of the azimuths

Description

This function calculates the basic circular statistics from a sample of azimuthsseveral circular data statistics from a set of input azimuths.

Usage

AllAzimuthStatistics(azimuths, ndig = 4)

Arguments

azimuths

Vector containing the values of the azimuths in degrees

ndig

Integer value that indicates the decimal places. The default value is 4

Value

The value all azimuth statistics 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 statistics calculated are: Mean Azimuth, Mean Module, Circular Variance, Circular Standard Deviation, Circular Dispersal, Von Mises Parameter, Kurtosis Coefficient, Skewness Coefficient.

References

Bachelet E. (1981) Circular statistics in biology. London. London Academic Press.

Dixon K. R., Chapman J. A. (1980) Harmonic mean measure of animal activity areas. Ecology 61, 1040-1044.

Fisher N.I. (1995) Statistical analysis of circular data. Cambridge. Cambridge University Press.

Jammalamadaka S.R., Sengupta A. (2001) Topic in circular statistics. Singapore. World Scientific Publishing.

Mardia K.V. , Jupp, P.E. (2000) Directional statistics. Chichester. Wiley.

Russell G.S. , Levitin D.J. (1995) An expanded table of probability values for Rao spacing test. Communications in Statistics: Simulation and Computation, 24(4), 879-888.

Website http://gim.unex.es/VecStatGraphs2D/

See Also

MeanModule, MeanAzimuth,

CircularVariance, CircularStandardDeviation,

CircularDispersal, KurtosisAzimuthCoefficient,

VonMisesParameter, SkewnessAzimuthCoefficient.

Examples

   FileName<-system.file("data/RectangularData.txt", package="VecStatGraphs2D")
   dat<-LoadData(FileName, Type=2)
   azimuths<-dat[,2]
   AllAzimuthStatistics(azimuths, ndig=4)