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Table 1 Review of the differences of the existing methods together with rationale for the current contribution

From: A hidden Markov model for reconstructing animal paths from solar geolocation loggers using templates for light intensity

  Customary approacha Ekstrom (2007) Nielsen & Siebert (2007) Sumner et al. 2009 Current contribution
R package GeoLight   Trackit TripEstimation FLightRb
Few points per twilight +    +− +
Shading cloud cover free   +   + +
Optimisation   least squares UKF MCMC (block update) particle filter
Movement allowed    + + +
Landscape mask     + +
Migratory-sedentary switch      +
Behavioural-landscape masks      +
Positions + − (not close the equinox) + + + +
Assesment of precision of estimates    + + +
Distribution of possible positions     + +
Distribution of possible transitions      +
  1. afor the details on customary threshold methods one should refer to Hill [44]; Hill & Braun [6]; Ekstrom [7]); bFLightR package (availiable at https://github.com/eldarrak/FLightR) is at the late development stage