runifpoint {spatstat} | R Documentation |
Generate a random point pattern containing n independent uniform random points.
runifpoint(n, win=owin(c(0,1),c(0,1)), giveup=1000)
n |
Number of points. |
win |
Window in which to simulate the pattern.
An object of class "owin"
or something acceptable to as.owin .
|
giveup |
Number of attempts in the rejection method after which the algorithm should stop trying to generate new points. |
If win
is a rectangle then this algorithm simply
generates n independent random points uniformly distributed
in the rectangle, by assigning uniform random values to their
cartesian coordinates.
If win
is not a rectangle, the algorithm uses the rejection
method. It finds a rectangle enclosing the window,
generates points in this rectangle, and tests whether they fall in
the desired window. It gives up after giveup
consecutive
failures have occurred.
The simulated point pattern (an object of class "ppp"
).
Adrian Baddeley adrian@maths.uwa.edu.au http://www.maths.uwa.edu.au/~adrian/ and Rolf Turner rolf@math.unb.ca http://www.math.unb.ca/~rolf
# 100 random points in the unit square pp <- runifpoint(100)