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adehabitatHR (version 0.4.22)

findmax: Find Local Maxima on a Map of Class 'SpatialPixelsDataFrame'

Description

findmax finds the local maxima on a map of class SpatialPixelsDataFrame.

Usage

findmax(x)

Value

an object of class SpatialPoints containing the x and y coordinates of the local maxima.

Arguments

x

a map of class SpatialPixelsDataFrame with one column

Author

Clement Calenge clement.calenge@ofb.gouv.fr

Details

This function may be useful, among other things, to identify the local modes of the utilization distribution of an animal estimated using kernelUD.

See Also

SpatialPixelsDataFrame-class for additionnal information on objects of class SpatialPixelsDataFrame.

Examples

Run this code

data(puechabonsp)

## estimates the UD
kud <- kernelUD(puechabonsp$relocs[,1])

## displays the maximum
image(kud[[1]])
points(findmax(kud[[1]]))

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