R: Increments of a Function

increment.fv {spatstat.core} | R Documentation

## Increments of a Function

### Description

Compute the change in the value of a function `f` when the function argument increases by `delta`.

### Usage

    increment.fv(f, delta)

### Arguments

`f` | Object of class `"fv"` representing a function.
`delta` | Numeric. The increase in the value of the function argument.

### Details

This command computes the new function

g(x) = f(x+h) - f(x-h)

where `h = delta/2`. The value of g(x) is the change in the value of f over an interval of length `delta` centred at x.

### Value

Another object of class `"fv"` compatible with `X`.

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au

Rolf Turner r.turner@auckland.ac.nz

and Ege Rubak rubak@math.aau.dk

### See Also

`fv.object`, `deriv.fv`

### Examples

      plot(increment.fv(Kest(cells), 0.05))

[Package spatstat.core version 2.4-4 Index]