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amt (version 0.1.5)

Animal Movement Tools

Description

Manage and analyze animal movement data. The functionality of 'amt' includes methods to calculate home ranges, track statistics (e.g. step lengths, speed, or turning angles), prepare data for fitting habitat selection analyses, and simulation of space-use from fitted step-selection functions.

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Install

install.packages('amt')

Monthly Downloads

1,101

Version

0.1.5

License

GPL-3

Issues

Pull Requests

Stars

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Repository

https://github.com/jmsigner/amt

Maintainer

Johannes Signer

Last Published

December 3rd, 2021

Functions in amt (0.1.5)

amt: Animal Movement Tools

Home-range isopleths

bootstrap_logrss

Bootstrap log-RSS estimate

Calculate the centroid of a track.

dispersal_kernel

Create a dispersal kernel

Inspect a track

Least square cross validation bandwidth

Calculate log-RSS for a fitted model

Difference in x and y

Coerce a track to other formats.

GPS tracks from four fishers

Extent of a track

filter_min_n_burst

Filter bursts by number of relocations

Geographic range

Fit logistic regression

Methods to calculate home-range overlaps

Convert home ranges to sfc

Fit a conditional logistic regression

Duration of tracks

Objects exported from other packages

Calculate a cumulative UD

extract_covariates

Extract covariate values

Removes Capture Effects

Export track to lines

Name of step-length distribution and turn-angle distribution

Converts angles to radians

Functions create statistical distributions

Coordinates of a track.

Coerces a track to points

Simulate UD from fitted SSF

Relocations of 1 red deer

Fit a continuous time movement model with ctmm

Fit distribution to data

hr_kde_ref_scaled

Select a bandwidth for Kernel Density Estimation

Relocations of one Red Deer

Obtains the Coordinate Reference Systems

Generate random points

Occurrence Distribution

Generate Random Steps

Get parameters from a (fitted) distribution

Obtain the step length and/or turn angle distributions from random steps or a fitted model.

Functions to create and work with steps

Obtain the utilization distribution of a probabilistic home range

hr_overlap_feature

Calculate the overlap between a home-range estimate and a polygon

Time of the day when a fix was taken

Plot a log_rss object

Create a track_*

Plot a home-range estimate

update_distr_man

Manually update amt_distr

update_sl_distr

Update movement distributions

Home-range area

Check for Coordinate Reference Systems (CRS)

summarize_sampling_rate

Returns a summary of sampling rates

movement_metrics

Movement metrics

Test for site fidelity of animal movement.

Simulate a trajectory

simulate_ud_from_dk

Simulate a UD from a dispersal kernel

Sample random numbers

Plot step-length distribution

Net squared displacement (nsd)

transform_coords

Selects relocations that fit a new time series

Create a template raster layer

hr_kde_pi wraps KernSmooth::dpik to select bandwidth for kernel density estimation the plug-in-the-equation method in two dimensions.

Reference bandwidth

Coerce to track

available_distr

Display available distributions for step lengths and turn angles.

amt_fisher_covar

Environmental data for fishers

Get bounding box of a track.

Single bootstrap iteration

Check factor levels