NEWS
biostats 1.1.2 (2026-03-05)
Bug fixes
sample_size(): corrected dropout adjustment from approximate formula
n * (1 + dropout) to exact formula n / (1 - dropout), preventing
underpowered enrollment at higher dropout rates.
biostats 1.1.1 (2025-12-16)
Improvements
- Minor change to sample_size function for better readability.
biostats 1.1.0 (2025-12-06)
New Features
- Implemented Lilliefors correction for Kolmogorov-Smirnov normality tests in both
normality() and summary_table() functions. The Lilliefors test provides more accurate p-values when distribution parameters are estimated from sample data.
Improvements
- Enhanced p-value formatting to display "p < 0.001" instead of "p = < 0.001"
- Added methodological references: Lilliefors (1967) and Dallal & Wilkinson (1986)
- Updated documentation to clarify that K-S option now uses Lilliefors correction
Dependencies
- Added
nortest package to Imports
biostats 1.0.0 (2025-11-13)