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amt (version 0.1.7)

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

1,310

Version

0.1.7

License

GPL-3

Issues

Pull Requests

Stars

Forks

Repository

https://github.com/jmsigner/amt

Maintainer

Johannes Signer

Last Published

February 23rd, 2022

Functions in amt (0.1.7)

Coerce to track

GPS tracks from four fishers

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

amt: Animal Movement Tools

available_distr

Display available distributions for step lengths and turn angles.

Export track to lines

Reference bandwidth

Coerces a track to points

amt_fisher_covar

Environmental data for fishers

Get bounding box of a track.

Extent of a track

extract_covariates

Extract covariate values

Coerce a track to other formats.

dispersal_kernel

Create a dispersal kernel

Difference in x and y

Check factor levels

filter_min_n_burst

Filter bursts by number of relocations

Calculate the centroid of a track.

bootstrap_logrss

Bootstrap log-RSS estimate

Fit a conditional logistic regression

Fit distribution to data

Relocations of 1 red deer

Calculate a cumulative UD

Fit a continuous time movement model with ctmm

Name of step-length distribution and turn-angle distribution

Single bootstrap iteration

Methods to calculate home-range overlaps

Convert home ranges to sfc

Functions create statistical distributions

Home-range isopleths

Fit logistic regression

Converts angles to radians

Coordinates of a track.

Check for Coordinate Reference Systems (CRS)

Home-range area

hr_kde_ref_scaled

Select a bandwidth for Kernel Density Estimation

hr_overlap_feature

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

Simulate UD from fitted SSF

Generate random points

Generate Random Steps

summarize_sampling_rate

Returns a summary of sampling rates

movement_metrics

Movement metrics

Least square cross validation bandwidth

simulate_ud_from_dk

Simulate a UD from a dispersal kernel

update_distr_man

Manually update amt_distr

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

Obtains the Coordinate Reference Systems

Time of the day when a fix was taken

Selects relocations that fit a new time series

Create a track_*

Net squared displacement (nsd)

Inspect a track

Geographic range

Calculate log-RSS for a fitted model

Duration of tracks

Occurrence Distribution

Get parameters from a (fitted) distribution

Plot a log_rss object

Plot a home-range estimate

Objects exported from other packages

Removes Capture Effects

Simulate a trajectory

remove_incomplete_strata

Remove strata with missing values for observed steps

Relocations of one Red Deer

Test for site fidelity of animal movement.

Obtain the utilization distribution of a probabilistic home range

Plot step-length distribution

Sample random numbers

transform_coords

Create a template raster layer

update_sl_distr

Update movement distributions

Functions to create and work with steps