breaks obtention
int.break(XY, int = NULL, smin = 0, smax = NULL, seqvec = NULL,
nclass = NULL, size = NULL, bin = c("FD", "sturges"), latlon = FALSE)
data frame or matrix with individual's position.
Distance interval in the units of the @XY slot data.
Minimum class distance in the units of the @XY slot data.
Maximum class distance in the units of the @XY slot data.
Vector with breaks in the units of the @XY slot data.
Number of classes.
Number of individuals per class.
Rule for constructing intervals when a partition parameter (int, nclass or size) is not given. Default is Sturge's rule (Sturges, 1926). Other option is Freedman-Diaconis method (Freedman and Diaconis, 1981).
Are the coordinates in decimal degrees format? Defalut FALSE. If TRUE,
the coordinates must be in a matrix/data frame with the longitude in the first
column and latitude in the second. The position is projected onto a plane in
meters with the function geoXY
.
Number of nearest neighbors.