Description Usage Arguments Details Value Author(s) References See Also Examples
This function calculates the concentration parameter a set of input coordinates.
1 | ConcentrationParameter3D(coord)
|
coord |
Matrix containing the values of the coordinates |
One way to get a set of coordinates X, Y and Z of the origin position and end position
(coordinates X, Y and Z of the vector) or of the colatitude and longitude, it is using the LoadData3D
function.
The concentration parameter measures the departure of the distribution from the uniform distribution. If this parameter tends to 0, the distribution converges to the uniform distribution, if it tends to infinity, the distribution is concentrated around the mean angle.
The concentration parameter all input coordinates.
Ruiz-Cuetos, J.C., bilba_t@hotmail.com, Felicisimo, A.M., amfeli@unex.es, Cuartero, A., acuartero@unex.es, Polo, M.E., mepolo@unex.es, Rodriguez, P.G. pablogr@unex.es
Fisher N.I. , Lewis T. , Embleton, B.J.J. (1987) Statistical analysis of spherical data. Cambridge. Cambridge University Press.
Website http://gim.unex.es/VecStatGraphs3D/
MeanModule3D
, MeanDirection3D
, SphericalStandardError3D
,
AllAngleStatistics
.
1 2 3 4 | FileName<-system.file("data/XYZcoor.txt", package="VecStatGraphs3D")
dat<-LoadData3D(FileName, Type=1)
coordinates<-dat[,4:6]
ConcentrationParameter3D(coordinates)
|
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