Description Usage Arguments Details Value Author(s) See Also Examples

Create a function on a linear network.

1 | ```
linfun(f, L)
``` |

`f` |
A |

`L` |
A linear network (object of class |

This creates an object of class `"linfun"`

.
This is a simple mechanism for handling a function
defined on a linear network, to make it easier to display
and manipulate.

`f`

should be a `function`

in the **R** language,
with formal arguments `f(x,y,seg,tp)`

or
`f(x,y,seg,tp, ...)`

where `x,y`

are
Cartesian coordinates of locations on the linear network,
`seg, tp`

are the local coordinates, and
`...`

are optional additional arguments.

The function `f`

should be vectorised: that is,
if `x,y,seg,tp`

are numeric vectors of the same length
`n`

, then `v <- f(x,y,seg,tp)`

should be a vector of length `n`

.

`L`

should be a linear network (object of class `"linnet"`

)
inside which the function `f`

is well-defined.

The result is a function `g`

in the **R** language which belongs to
the special class `"linfun"`

. This function
can be called as `g(X)`

where `X`

is an `"lpp"`

object,
or called as `g(x,y)`

or `g(x,y,seg,tp)`

where
`x,y,seg,tp`

are coordinates. There are several methods
for this class including `print`

, `plot`

and `as.linim`

.

A function in the **R**\ language.
It also belongs to the class `"linfun"`

which has methods
for `plot`

, `print`

etc.

and \rolf

`methods.linfun`

for methods applicable to
`"linfun"`

objects.

1 2 3 4 5 |

spatstat documentation built on May 30, 2017, 7:53 a.m.

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