# methods.linfun

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##### Methods for Functions on Linear Network

Methods for the class "linfun" of functions on a linear network.

Keywords
spatial, math
##### Usage
## S3 method for class 'linfun':
print(x, \dots)  ## S3 method for class 'linfun':
plot(x, \dots, L=NULL,
eps = NULL, dimyx = NULL, xy = NULL,
main="")  ## S3 method for class 'linfun':
as.linim(X, L, \dots, eps = NULL, dimyx = NULL, xy = NULL)  ## S3 method for class 'linfun':
as.owin(W, \dots)  ## S3 method for class 'linfun':
as.linnet(X, \dots)  ## S3 method for class 'linfun':
as.function(x, \dots)
##### Arguments
X,x,W
A function on a linear network (object of class "linfun").
L
A linear network
eps,dimyx,xy
Arguments passed to as.mask to control the pixel resolution.
...
Extra arguments passed to plot.im or print.default.
main
Main title for plot.
##### Details

These are methods for the generic functions plot, print and the spatstat generic functions as.owin, as.linnet, as.linim.

An object of class "linfun" represents a mathematical function that could be evaluated at any location on a linear network. It is essentially an Rfunction with some extra attributes.

The method as.linnet.linfun extracts the linear network on which the function is defined. The method as.owin.linfun extracts the two-dimensional spatial window containing the linear network. The method as.linim.linfun converts the function to a pixel image on the linear network (an object of class "linim").

##### Value

• For print.linfun the result is NULL.

For plot.linfun the result is the same as for plot.im. For the conversion methods, the result is an object of the required type: as.linim.linfun returns an object of class "linim", and so on.

##### Aliases
• methods.linfun
• print.linfun
• plot.linfun
• as.linim.linfun
• as.owin.linfun
• as.linnet.linfun
• as.function.linfun
##### Examples
data(letterR)
X <- runiflpp(3, simplenet)
f <- nnfun(X)
f
plot(f)
as.function(f)
as.owin(f)
as.linnet(f)
as.linim(f)
Documentation reproduced from package spatstat, version 1.34-1, License: GPL (>= 2)

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