NEWS

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amt 0.3.0

New features

• track_align() added to the package.

Fixes

• Upgraded from raster to terra for hr_area().
• Fixed issue #109
• Solved issue #108
• Fixed NA in tac()
• Fixed error in steps_by_burst()/random_steps() if there is only 1 burst.

amt 0.2.2

Fixes

• Fixed error within random_steps.brusted_track_xyt(), when burst_id did not start with 1.
• Removed as_move().
• Fixed documentation (requested by CRAN)
• Fixed issue in make_trast() (reported by joshcullen; #105)
• Fixed issue lonlat=TRUE when calculating step lengths (#103, #107, #108)

amt 0.2.1

Fixes

• The correct step id is now given in random_steps.brusted_track_xyt().

amt 0.2 (2023-03-03)

updates

• Removed dependency on Rccp, all code is now in R.
• extract_covariates() no longer accepts a buffer.
• Updated time_of_day() to use suncalc instead of maptools.
• Updated hr_overlap() from raster to terra.
• Updated od() and hr_od() from raster to terra.
• Updated hr_isopleths() from raster/sp to terra/sf.
• hr_cud() updated from raster to terra.
• extrackt_covariates*() updated from raster to terra.
• distance_to_center() was removed.
• Updated step, it now uses sf::st_distance() instead of raster::distance().
• Dependency on raster, sp, rgeos and spdep were removed.
• as_sp() is now as_sf() and replaced the function call in the whole package.
• Rewrite parts of hr_akde() to use terra instead of raster.
• Rewrite parts of hr_locoh() to use sf instead of rgeos.

Fixes

• Fixed error in ta_correlation() reported by Ines Khazar.

amt 0.1.8

updates

• fit_clogit() checks for strata.

amt 0.1.7 (2022-02-23)

updates

• Accepted merge to have to have buffers for extract_covariates().
• Accepted merge to fix error in as_ltraj().
• Accepted merge to typo.
• New method remove_incomplete_strata()

amt 0.1.6 (2022-01-18)

updates

• fixed issue #54.
• fixed issue #43 by adding a an example.
• fixed issue #57.
• fixed issue #58.
• fixed issue #56: levels for akde
• added enhancement #55
• fixed small error in steps() for calculating the absolute direction.
• New method add_nsd() to calculate the NSD for tracks and steps.
• Fixed error with time_of_day and CRS

amt 0.1.5 (2021-12-03)

updates

• support for hnorm and lnorm step-length distributions.
• support for st_crs for CRS. Major updates for several functions
• deprecated the function dist_cent.
• Added as_track for data.frames.
• Added argument verbose to make_track().
• Fixed bug with hr_isopleths() for aKDE.
• Fix issue #48 (https://github.com/jmsigner/amt/issues/48). Zero step lengths return now NA for direction.

amt 0.1.4 (2021-01-18)

updates

• unnest works for track_xy*
• Major updates for hr_akde. This includes that now CI are available for
• new vignette and methods for hr_overlap
• reduced package dependencies.

bug fixes

• Fixed bug in confidence calculation for log_rss.

amt 0.1.3 (2020-10-01)

updates

• hr_overlap gained two new arguments labels and consecutive.only.
• log_rss new CI
• I was asked to move Rdpack to imports.

bug fixes

• group_by for random points works as expected.

amt 0.1.2 (2020-06-14)

bug fixes

updates

• hr_mcp gained an argument keep.data
• as_track can now convert steps_xyt back to a track_xyt
• plot function for home ranges improved
• Ported function for site_fidelity from package rhr.
• Changed test in order to be compatible with the new dplyr version.

amt 0.1.0 (2020-04-23)

bug fixes

• random_steps uses abs direction as reference instead of relative direction

updates

• Streamlined home-range methods
• Added methods for overlaps and intersections of home ranges
• Added href scaled for KDE

amt 0.0.9 (2020-03-30)

bug fixes

• extract_covariate now works with new version of tibble for raster stacks.
• fit_distr for gamma distribution, now replaces 0 step length with min step- length and informs the user with a message.

minor changes

• added citation to the description
• unnamed elements of fitted gamma

major changes

• replaced testthat with tinytest

amt 0.0.8 (2020-03-23)

new features

• New vignette for RSFs.
• New functions to calculate RSS.
• New vignette for interfacing other packages.
• Added method to interface the move packages.

major changes

• Improved random_points by adding methods for track, hr and spatial objects.
• Adjusted random_steps
• Removed dependency on velox. This makes extract_covariates_along slower.

amt 0.0.7 (2019-09-19)

new features

• Added a dplyr count method for track, steps, random_steps and random_points
• Added a AIC method for fit_(i)ssf.
• Added for KDE: pi and lscv for bandwidth estimation

major changes

• hr_locoh_k id deprecated and will be part of hr_locoh. Specifically type = "k".
• All home range methods now return sf objects.

amt 0.0.6.0

major changes

• random_points with kde home ranges now work with different home range levels.
• random_steps now uses units to be explicit about the turning angle.
• bbox is also available for steps and can return objects of sf.
• time_of_day propgagates NA in coordinates.
• time_of_day returns factor with levels set correctly.

amt 0.0.5.0 (2018-09-12)

major changes

• random_steps gained a new distribution for random steps (exponential).
• bug fix in random_steps
• new function extract_covariates_along, extracts covariates along a random step.
• steps gains a new argument: keep_cols in order to keep columns from point when creating steps.
• simulate_tud: a convenience wrapper around simulate_ud to simulate transition UDs.

amt 0.0.4.0 (2018-04-21)

major changes

• Added an alias to mk_track called make_track.
• mk_track gained a new argument all_cols that allows to carry over all columns to track.
• mk_track gained a new argument check_duplicates that allows to the user to specify if temporal duplicates should give an error or not.
• Added hr_kde to calculate Kernel home ranges.
• steps now uses difftime to calculate time differences.

minor changes

• Removed: Depends tidyverse
• Fixed errors with lubridate::Periods within data_frames

amt 0.0.3.0 (2018-03-22)

minor changes

• Fixed vignette titles.
• Added Rdpack to suggest