Changelog

Source: NEWS.md

SfL 1.0.2

  • Added the Marburg 2026 HTML exercises for sessions 03 through 10 to the workshop resource catalogue.

SfL 1.0.1

Data

  • Added data_l, a 7,200-observation lexical-decision teaching data set with reaction times, response accuracy, experimental conditions, and lexical predictors.

SfL 1.0.0

Installation and dependencies

  • Reduced the package’s hard dependencies to base-recommended packages; lme4 is now optional and needed only by the mixed-model helpers.
  • Added install_workshop_packages() for the optional workshop plotting stack.
  • Removed the dependency on MuMIn.

Functions

  • Added mixed_model_r2() for marginal and conditional R-squared values from Gaussian lme4::lmer() models, including random-slope models.
  • Centralized slide and exercise links so new workshop resources can be added in one place.
  • Retained singular and plural resource-opening function names for backward compatibility.
  • Reimplemented small formatting, grouping, and correlation-plot helpers with base R.
  • Corrected argument handling and result construction in several statistical helpers.

Quality and documentation

  • Added automated tests and current package metadata.
  • Updated documentation, examples, vignettes, and installation instructions.