amt (version 0.2.2.0)

movement_metrics: Movement metrics

Description

Functions to calculate metrics such as straightness, mean squared displacement (msd), intensity use, sinuosity, mean turn angle correlation (tac) of a track.

Usage

straightness(x, ...)
cum_dist(x, ...)
tot_dist(x, ...)
msd(x, ...)
intensity_use(x, ...)
sinuosity(x, ...)
tac(x, ...)

Value

A numeric vector of length one.

Arguments

x

[track_xy, track_xyt]
A track created with make_track.

...

Further arguments, none implemented.

Details

The intensity use is calculated by dividing the total movement distance (tot_dist) by the square of the area of movement (= minimum convex polygon 100).

References

• abrahams2017amt

• almeida2010amt

• swihart1985amt

Examples

data(deer)

tot_dist(deer)
cum_dist(deer)
straightness(deer)
msd(deer)
intensity_use(deer)