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lfebd3 0.3.0

4-level factorial designs

• 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.

lfebd3 0.2.0

Major changes

• 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.

3-level design updates

• 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.

Output and usability changes

• 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.

Documentation

• Added roxygen2 documentation for exported functions.
• Added small executable examples for exported functions.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.