NEWS

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mlr3filters 0.9.1 (2026-04-23)

• fix: as.data.table() for the dictionary of filters now uses prototypes.

mlr3filters 0.9.0 (2025-09-12)

• refactor: Field param_set of class Filter is now an active binding.
• feat: Added support for logical, factor, and ordered features to FilterBoruta.
• feat: Added cli package for class printer.
• fix: Use fresh resampling instance in each invocation in FilterPerformance.
• fix: standardize parameter in FilterPermutation works now as expected.

mlr3filters 0.8.1 (2024-11-08)

• compatibility: mlr3 0.22.0

mlr3filters 0.8.0 (2024-04-10)

• Added FilterBoruta
• Fixed issue with FilterPerformance where the arg measure wasn't passed on
• Added FilterUnivariateCox (thanks to @bblodfon)
• Parameter value na.rm is properly initialized to TRUE (thanks to @bblodfon)
• Bugfix: property missings is now set correctly for FilterFindCorrelation
• Bugfix: $hash now works for Filters

mlr3filters 0.7.1 (2023-02-15)

• Tagged multiple filters to be able of gracefully handling missing values.
• Added more supported feature types to FilterCarScore.
• Improved documentation.

mlr3filters 0.7.0 (2023-01-06)

• Features are now checked for missing values to improve error messages (#140)
• Removed deprecated functions
• Use featureless learner in defaults (#124)
• Field task_type of class Filter has been renamed to task_types.

mlr3filters 0.6.0 (2022-09-02)

• Add FilterCarSurvScore (#120, @mllg)
• Use featureless learner instead of rpart as default learner for FilterImportance and FilterPerformance (#124)
• Add documentation for PipeOpFilter
• Add mlr3pipelines examples to help pages (#135, @sebffischer)
• Add label arg to Filter class (#121, @mllg)

mlr3filters 0.5.0 (2022-01-25)

• Add references to benchmark paper and praznik paper (#104)
• New filter FilterSelectedFeatures which makes use of embedded feature selection methods of learners. See the help page for more details (#102)
• Allow NA as task type. This makes it possible to use other tasks than "regr" or "classif" for certain filters, e.g. FilterVariance (#106)

mlr3filters 0.4.2 (2021-07-12)

• Fixes an issue where argument nfeat was not passed down to {praznik} filters (#97)

mlr3filters 0.4.1 (2021-03-08)

• Disable threading in praznik filters by default (5f24742e9b92f6a5f828c4f755be3fb53427afdb, @mllg) Enable by setting hyperparameter threads >= 2 or to 0 for auto-detection of available cores (#93, @mllg)
• Document return type of private .calculate() (#92, @mllg)
• Allow NA in returned vectors. Features with missing values as well as features with no calculated score are automatically ranked last, in a random order. (#92, @mllg)
• praznik filters now also support regr Tasks (#90, @bommert)

mlr3filters 0.4.0 (2020-11-10)

• Add ReliefF filter (#86)
• Fix praznik scores calculation: praznik filters are not monotone in the selected features due to their iterative fashion. E.g., the first selected feature can have a score of 5, the second selected feature a score of 10. This version replaces the praznik scores by a simple sequence (#87, @mllg)

mlr3filters 0.3.0 (2020-07-18)

• Add Permutation (#70)
• Add flts() (#77)
• Github Actions: set cron job to 4am to avoid potential download issues with R-devel on macOS
• Filters now have a help method $help() which opens the respective help page (#68)

mlr3filters 0.2.0 (2020-03-12)

Internal

• Use private$.calculate instead of public "calculate" method for Filters
• switch from Travis to GitHub Actions
• Use Roxygen R6 notation for docs

Enhancements

• new filter FilterFindCorrelation (#62, @mb706)

mlr3filters 0.1.1 (2019-12-08)

• Replace dependency Metrics with mlr3measures.

mlr3filters 0.1.0 (2019-09-04)

• Initial CRAN release.