Changelog

Source: NEWS.md

birddog 1.0.4

CRAN release: 2026-04-04

New features

• mixed_sort(): exported for external use, with improved documentation.
• plot_group_trajectories_lines_2d(): new width_by_traj_size parameter to scale line width by trajectory size (default TRUE).
• plot_group_trajectories_lines_3d(): new width_by_traj_size parameter to scale line width by trajectory size (default TRUE).

Improvements

• Rewrite vignette with biogas dataset and gallery-with-code format.
• Fix README: wrong package name and CRAN URL, add Features section.

birddog 1.0.2

New features

• sniff_key_route(): support for multiple key-routes and natural group ordering.
• sniff_key_route(): new compact_gaps and direction arguments.
• sniff_entropy(): new mode and window_size arguments.
• get_openalex_fields(): cache saved batches to skip duplicate API downloads.

Improvements

• Optimize SPC and key-route search with pre-built adjacency lists.
• Pre-render horizon plots to reduce gt object size in sniff_groups_attributes().
• Improve key-route plot layout, axis labels, and data output.
• Improve horizon plot x-axis: vertical year labels, removed title.
• Use 95th percentile for entropy diff plot y-axis range.
• Swap diff colors in index plots: red for negative, blue for positive.
• Add y_limits_diff parameter to indexes_plots().

Bug fixes

• Fix y-axis scale across entropy plots for group comparison.
• Fix dplyr variable collision in sniff_key_route() group filter.
• Fix rlang .env import to resolve R CMD check NOTE.
• Fix plot issues: diff colors and same-year node spreading.

birddog 1.0.0

CRAN release: 2026-02-19

• Initial CRAN release.
• Rewrite of sniff_key_route(), sniff_citations_cycle_time(), and sniff_entropy().
• Added testthat test suite with 102 tests across 16 files.
• Fix BibTeX parser for Windows CRLF line endings.
• Fix CRAN check issues: Unicode chars, \dontrun examples, DOI URLs.
• Replace \dontrun with \donttest in all examples.
• Add error guards to vignettes to prevent crashes.

birddog 0.1.0

• Initial development version.
• Added sniff_key_route() function for main path analysis.
• Includes visualization capabilities.
• Implements methodology from Liu & Lu (2012).