NEWS

---

coda.plot 0.2.2 (2026-04-12)

New features

• Added a modular API for ternary diagrams based on ternary_frame(), ternary_plot(), ternary_coords(), add_ternary_grid(), add_ternary_points(), add_ternary_path(), and add_ternary_pc().

Improvements

• Improved ternary plotting so that corner labels are inferred from colnames(X) when available, and refreshed automatically when the initial frame used default labels.
• Added optional centering and scaling in log-ratio coordinates to ternary_frame() and ternary_diagram().
• Added support for plotting principal component directions in ternary diagrams through add_ternary_pc() and the show_pc argument of ternary_diagram().

coda.plot 0.1.9 (2025-04-20)

• balance_dendrogram() indexing corrected.