Simulates SSI (sequential spatial inhibition) point process.
SSI(n, r)
number of points
inhibition distance
list of vectors of x and y coordinates
x
y
uses the random number generator.
will never return if r is too large and it cannot place n points.
r
n
uses the region set by ppinit or ppregion.
ppinit
ppregion
Ripley, B. D. (1981) Spatial Statistics. Wiley.
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.
Psim, Strauss
Psim
Strauss
# NOT RUN { towns <- ppinit("towns.dat") par(pty = "s") plot(Kfn(towns, 10), type = "b", xlab = "distance", ylab = "L(t)") lines(Kaver(10, 25, SSI(69, 1.2))) # }
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