Random Points on a Linear Network
Generates n independent random points on a linear network with a specified probability density.
rlpp(n, f, ..., nsim=1, drop=TRUE)
n |
Number of random points to generate. A nonnegative integer giving the number of points, or an integer vector giving the numbers of points of each type. |
f |
Probability density (not necessarily normalised).
A pixel image on a linear network (object of class |
... |
Additional arguments passed to |
nsim |
Number of simulated realisations to generate. |
drop |
Logical value indicating what to do when |
The linear network L
, on which the points will be generated,
is determined by the argument f
.
If f
is a function, it is converted to a pixel image
on the linear network, using any additional function arguments
...
.
If n
is a single integer and f
is a function or pixel image,
then independent random points are generated on L
with
probability density proportional to f
.
If n
is an integer vector and f
is a list of functions
or pixel images, where n
and f
have the same length,
then independent random points of several types are generated on
L
, with n[i]
points of type i
having probability
density proportional to f[[i]]
.
If nsim = 1
and drop=TRUE
,
a point pattern on the linear network,
i.e.\ an object of class "lpp"
.
Otherwise, a list of such point patterns.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au
g <- function(x, y, seg, tp) { exp(x + 3*y) } f <- linfun(g, simplenet) rlpp(20, f) plot(rlpp(20, f, nsim=3))
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