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.