NEWS

lfebd3 0.3.0 (2026-07-21)

Added complete 4-level factorial generators lfebd4() and lfebd4.ff().
Added fractional 4-level factorial generation with defining-factor summaries through lfebd4.fr().
Added principal-block and full confounded 4-level generators through lfebd4.cf() and lfebd4.cf.full().
Added lfebd4_analyze() and print methods for 4-level design objects.
Retained the special lfebd4.fr(5, 3) construction supplied for the 4-level module.
Added lfebd3.ff() and revised the 3-level fractional and confounded generators to return richer design objects with selected-row and defining/confounding information. These 3-level return structures and some direct argument names differ from version 0.2.0.
Preserved the existing 5-level interfaces.

Added support for 5-level factorial block designs.
Added complete factorial, fractional factorial, and confounded factorial generators for 5-level designs: lfebd5(), lfebd5.fr(), and lfebd5.cf().
Added lfebd5_analyze() for generation and analysis of 5-level factorial block designs.
Added performance-optimized analysis for larger 5-level designs.

Added clearer 3-level function names: lfebd3(), lfebd3.fr(), lfebd3.cf(), and lfebd3.cf.full().
Added lfebd3_analyze() as the main wrapper for 3-level designs.
The 3-level analyzer now infers factor_levels = rep(3, n) automatically.

Analysis functions now return classed result objects instead of printing everything directly.
Added print methods for analysis result objects.
Reduced unnecessary console output.
Large 5-level outputs are limited by default when printed.