move is a package that contains functions to access movement data stored at www.movebank.org as well as tools to visualize and statistically analyse animal movement data. Move addresses ecological questions regarding movement.
The package implements classes for movement data and supports
Creation of Move objects (see Move-class) representing animals and their track
Calculation of utilization distributions using the dynamic Brownian bridge Movement Model
Plotting tracks, utilization distributions and contours
Access to raster, n.col, projection and coordinates
Different CRS projection methods such as longlat or aeqd
Move objects can be created from files with the function:
move To create an object containing one animal track
moveStack To create an object containing multiple move objects
getMovebankData To create a Move or a MoveStack object with data from Movebank
With the function below the dynamic Brownian Bridge Movement Model calculates the utilization density from a Move object:
||To calculate the utilization density|
||Track-coordinates of the Move Object|
||A data.frame with the important data of the Move Object|
||The number of locations|
||The time lags between the locations|
||The projection method of the track/raster|
The track or the utilization distribution can be plotted with the following functions:
||plots the utilization distribution with fixed width and height ratio (see DBBMM-class), or the track (see Move-class)|
||plots the utilization distribution fitted to the window|
||adds the contours of utilization distribution to a plot|
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