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Table 3 Individual GPS features extracted per time window and cow

From: Inferring an animal’s environment through biologging: quantifying the environmental influence on animal movement

Dimension Statistic Description
Distance Net gross ratio Distance between first and last position divided by sum of distances of all segments
Speed Mean  
Standard deviation  
Median  
Minimum  
Maximum  
First quartile  
Third quartile  
Autocorrelation function index Autocorrelation value at a lag of 1 s
Brownian motion scaling parameter See Eq. 1
Turning angle ρ Length of the mean resultant vector
Autocorrelation function index of the absolute turning angles Autocorrelation value at a lag of 1 s
Absolute tangential velocity Mean  
Standard deviation  
Median  
Minimum  
Maximum  
First quartile  
Third quartile  
Autocorrelation function index Autocorrelation value at a lag of 1 s
Mean Squared Displacement Diffusion coefficient The value of a in the fitted model MSD = b on MSD values for τ from 1 to 6
Diffusion power coefficient The value of b in the fitted model MSD = b on MSD values for τ from 1 to 6
First Passage Time Mean, 5 m radius  
Variance of log, 5 m radius  
Autocorrelation function index, 5 m radius Autocorrelation value at a lag of 1 s
Radius with maximum variance of log (integers from 1 to 10 m)  
Linear regression coefficient log radius vs. log mean FPT