Calculates the segment length of a track

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Description

Calculates the segment length of a track

Usage

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  ## S4 method for signature 'SpatialPointsDataFrame'
seglength(x)

Arguments

x

a SpatialPointsDataFrame, like a Move or MoveStack object

Details

The seglength function calculates the distances between point 1 and point 2, point 2 and point 3, ... .

Value

If the SpatialPointsDataFrame is projected in longitude latitude coordinates, the returned values are in meters. If not, the distances are Euclidean distances in map units. Distances are calculates with the pointDistance from the package raster. Note that in stacks distances are not split between animals.

Author(s)

Marco Smolla

Examples

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data(leroy)
data(fishers)  
head(seglength(leroy)) #Move object in longlat projection
head(seglength(fishers)) #MoveStack object in aeqd projection

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