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mlr3 1.8.0 source code.tar.gz 2026-08-21 1.1 MB
mlr3 1.8.0 source code.zip 2026-08-21 1.4 MB
README.md 2026-08-21 755 Bytes
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  • feat: Added msr("best_valid_score") (mlr_measures_best_valid_score), which reports the best internal validation score observed during training/
  • feat: Added the diabetes task (mlr_tasks_diabetes) for the synthetic mlbench::SynthDiabetes2 data set, which has the same structure as the former pima task including missing values, for use in examples and tests.
  • BREAKING CHANGE: Removed the pima task (mlr_tasks_pima) because the PimaIndiansDiabetes2 data set was removed from the mlbench package, use tsk("diabetes") instead.
  • perf: TaskClassif$print() now caches the class distribution of the target column and only recomputes it when the task hash changes. Querying the target column can be slow for tasks with many rows.
Source: README.md, updated 2026-08-21