Methods for Functions on Linear Network
Methods for the class "linfun" of functions on a linear network.
## S3 method for class 'linfun' print(x, ...) ## S3 method for class 'linfun' summary(object, ...) ## S3 method for class 'linfun' plot(x, ..., L=NULL, main) ## S3 method for class 'linfun' as.data.frame(x, ...) ## S3 method for class 'linfun' as.owin(W, ...) ## S3 method for class 'linfun' as.function(x, ...)
x,object,W |
A function on a linear network
(object of class |
L |
A linear network |
... |
Extra arguments passed to |
main |
Main title for plot. |
These are methods for the generic functions
plot, print, summary
as.data.frame and as.function,
and for the spatstat generic function
as.owin.
An object of class "linfun" represents a
mathematical function that could be evaluated at any location
on a linear network. It is essentially an R function with some
extra attributes.
The method as.owin.linfun extracts the two-dimensional spatial
window containing the linear network.
The method plot.linfun first converts the function to a
pixel image using as.linim.linfun, then plots the image using
plot.linim.
Note that a linfun function may have additional arguments,
other than those which specify the location on the network
(see linfun). These additional arguments may be passed
to plot.linfun.
For print.linfun and summary.linfun the result is NULL.
For plot.linfun the result is the same as
for plot.linim.
For the conversion methods, the result is an object of the
required type: as.owin.linfun returns an object of
class "owin", and so on.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner r.turner@auckland.ac.nz and Ege Rubak rubak@math.aau.dk
X <- runiflpp(3, simplenet) f <- nnfun(X) f plot(f) as.function(f) as.owin(f) head(as.data.frame(f))
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