fmap

specify which location estimates to map: fitted or predicted

what

include Argos observations on map (logical)
(logical); ignored if `obs = FALSE`

`proj4string` for reprojecting locations, if NULL the
default projection ("+proj=merc") for the fitting the SSM will be used

factors to extend the plot range in x and y dimensions
(can exceed 1)

ext.rng

size

map foieGras fitted or predicted locations, with or without
Argos observations, optionally apply a different projection

Fits continuous-time random walk and correlated random walk state-space models to filter animal tracking data ('Argos', processed light-level 'geolocation', 'GPS'). Template Model Builder ('TMB') is used for fast estimation. The 'Argos' data can be: (older) least squares-based locations; (newer) Kalman filter-based locations with error ellipse information; or a mixture of both. The models estimate two sets of location states corresponding to: 1) each observation, which are (usually) irregularly timed; and 2) user-specified time intervals (regular or irregular). Latent variable models are provided to estimate move persistence along tracks as an index of behaviour. 'Jonsen I', 'McMahon CR', 'Patterson TA', 'Auger-Methe M', 'Harcourt R', 'Hindell MA', 'Bestley S' (2019) Movement responses to environment: fast inference of variation among southern elephant seals with a mixed effects model. Ecology 100:e02566 <doi:10.1002/ecy.2566>.

fmap: fmap

Description

Usage

Arguments