NEWS

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fellingdater 1.2.1 (2026-04-14)

IMPROVEMENTS

• trs_plot_dated() gains a new x_breaks argument to control x-axis tick intervals
• trs_plot_dated() now handles non-syntactic column names safely using make.names()
• improved y-axis scaling and plot appearance for trs_plot_dated()
• fix for trs_crossdate() so it behaves correctly when top_n is activated

BUG FIXES

• read_fh() now safely handles non-UTF-8 characters by normalizing input with iconv()

DOCUMENTATION

• added recent scientific publications citing the companion paper to the package
• removed non-ASCII characters from function documentation

fellingdater 1.2.0 (2025-06-30)

NEW FEATURES

A new set of functions for tree-ring dating, analysis, and visualization (trs_*)

• Data generation and preparation: trs_pseudo_rwl(): Generate synthetic tree-ring datasets for testing and method development trs_select(): Select specific series from tree-ring data trs_remove(): Remove series from tree-ring datasets trs_trim(): Remove leading and trailing NA's in tree-ring datasets or single series

• Crossdating analysis: trs_crossdate(): Comprehensive crossdating analysis with multiple statistical measures trs_date_end(): Set end dates for tree-ring series based on crossdating results trs_tho(): Calculate t-values according to the Hollstein (1980) transformation trs_tbp(): Calculate t-values according to the Baillie & Pilcher (1973) transformation trs_pv(): Calculate percentage of parallel variation including SGC, SSGC, and Gleichläufigkeit, with significance levels trs_tSt(): Calculate correlation measures (Pearson r and t-values)

• Visualization: trs_plot_dated(): Display crossdating results with highlighting of parallel variation trs_plot_rwl(): Plot individual tree-ring series with customizable colors and styling

Enhanced workflow integration

Tree-ring analysis functions now seamlessly integrate with existing felling date estimation (sw_* functions) Complete dendroarchaeological workflow from data processing through crossdating to felling date estimation Support for both synthetic data generation and real dendrochronological datasets

NEW DATASET

• Weitz_2025: New sapwood model for the Brussels region (Belgium) based on Weitz et al. (2025)

fellingdater 1.1.0 (2025-06-05)

• Fixes to ensure that a user-defined sapwood dataset can be used with all relevant functions (fd_report(), sw_combine() and sw_sum().
• Extra checks on the input (e.g. check_input(), check_duplicate_labels() and check_sapwood_data_user(). These additional functions have been added to 'helper-functions.R' and integrated into fd_report(), sw_combine() and sw_sum().
• The example data sets for testing sw_combine() and sw_sum() and fd_report() have been renamed from trs_example(1 to 7) to sw_example(1 to 7).

fellingdater 1.0.3 (2025-05-24)

• fix to fd_report() to allow user-defined sw_data.

fellingdater 1.0.2 (2024-05-22)

PUBLICATION

• Paper accepted for publication in 'The Journal of Open Source Software' (JOSS).
• doi: https://doi.org/10.21105/joss.06716
• CITATION and README updated accordingly

fellingdater 1.0.1 (2024-05-13)

• Paper.md updated for 'The Journal of Open Source Software' (JOSS).
• New vignette (article): "The fellingdater workflow"

fellingdater 1.0.0 (2024-04-16)

• Major release of fellingdater to reflect the fact that the package is now fully functional and has successfully passed the rOpenSci review process.
• review history: https://github.com/ropensci/software-review/issues/618

fellingdater 0.0.0.9004 (2024-03-21)

REVIEW

• new version of the package after review
• review history: https://github.com/ropensci/software-review/issues/618
• fellingdateRhas been renamed to fellingdater

fellingdater 0.0.0.9003 (2023-11-20)

NEW FEATURES

• Version ready for submission to rOpenSci for software review
• First draft op paper for 'The Journal of Open Source Software' in /paper/paper.md