regdist3d {spatclus}R Documentation

Distance weighting and breaks determination in 3D

Description

This function is the 3D version of the regdist function which is described hereafter.

Usage

 regdist3d(data, pop, start, m, h, T, limx, limy, limz)

Arguments

data Data frame with 3 colums (x, y and z) giving coordinates of case data points.
pop Matrix with 4 columns giving coordinates of underlying populations individuals in the first 3 colums. Last is a column of 1's.
start Indicates the rank of the first trajectory point in term of distance from the area edges. 1 means that the first point of the trajectory is the nearest from the edge.
m The maximal number of breaks.
h The minimal cluster size.
T The size of the weighted distance serie.
limx 2 element vector containing the study area bounds of the X-axis.
limy 2 element vector containing the study area bounds of the Y-axis.
limz 2 element vector containing the study area bounds of the Z-axis.

Value

A list of objects :

res A result matrix giving, for each point ordered by its rank in the trajectory, its distance to the nearest neighbourg, the expentancy of this distance, and its weighted distance.
bc A list of vectors. The $k^{th}$ element of the list gives the estimated breaks for the model with $k$ breaks.

Author(s)

Christophe Dematte{"i} demattei@iurc.montp.inserm.fr

See Also

nincdepart3d espdist3d multbreak regdist


[Package spatclus version 1.0-3 Index]