Changelog

Source: NEWS.md

ct 0.3.0

2025-08-09

• Added Distance Sampling functions:
  • ct_fit_ds() for fitting detection functions and estimating density/abundance.
  • ct_availability() for temporal availability corrections.
  • ct_QAIC(), ct_chi2_select(), and ct_select_model() for automated two-stage model selection.
• Added Camera Trap Data Package (Camtrap DP) integration:
  • ct_dp_read() to load Camtrap DP datasets from local files or URLs.
  • ct_dp_table() to access specific tables (observations, deployments, media, events, taxa).
  • ct_dp_example() to load example dataset.
  • ct_dp_version() to retrieve dataset standard version.
  • ct_dp_filter() to subset tables using dplyr-style filtering.

ct 0.2.0

2025-07-29

Improved ct_stack_df() - C++ implementation for stacking a list of data frames.

2025-07-10

Added new functions to support trap rate and REM-based density estimation workflows: ct_traprate_estimate() estimates trap rates from detection data; ct_fit_activity() models diel activity patterns; ct_fit_speedmodel() fits animal movement speed models; ct_fit_detmodel() estimates detection probability functions; ct_fit_rem() applies the Random Encounter Model (REM) to estimate animal density; ct_get_effort() calculates sampling effort metrics such as camera-days; and ct_traprate_data() prepares detection and effort data for further analysis.

2025-06-26

• ct_correct_datetime() to correct datetime stamps in camera trap datasets using a deployment-specific correction table. Supports multiple datetime formats, offset directions.

2025-06-25

• ct_plot_camtrap_activity() function to visualize camera trap deployment activity with optional gap indicators.
• ct_summarise_camtrap_activity() function to compute summary statistics for camera trap deployment activity, including active durations, gaps, and activity rates, etc.

2025-06-24

• Improved handling of non-numeric variables in ct_describe_df().
• Added support for detecting sampling breaks using ct_find_break().
• Added function to compute confidence intervals (ct_ci() and ct_lognorm_ci())
• Fixed NSE-related warnings

First Release Highlights

• Initial release of maimer
• Provides tidyverse-friendly functions for data cleaning, transformation, and visualization.
• Includes support for alpha & beta diversity, species activity overlap, and temporal analysis.
• Integrates with ggplot2 for customizable visualizations.
• Features an interactive Shiny app for image metadata handling