[DEFUNC] This is the same as "sector pair correlation function" in Stoyan 1991. Direction defined with a unit vector. Estimated in a cone of angle theta and different radii.
Usage
pcf_sector(
x,
r,
theta,
unit,
epsilon,
h,
stoyan = 0.15,
correction = "translation",
n_dir = 12
)Arguments
- x
pp, list with $x~coordinates $bbox~bounding box
- r
Ranges
- theta
Direction sector central angles, list of ncol(x$x)-components.
- unit
Alternative to theta, a matrix of direction vectors.
- epsilon
Direction sector width angles
- h
width of epanechnicov kernel
- stoyan
if h not given, use h=stoyan/sqrt(lambda)
- correction
"none" or translation. Translation only for rectangle box.
- n_dir
If unit missing, compute on a grid with resolution n_dir