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themis (development version)

  • Calling ?tidy.step_*() now sends you to the documentation for step_*() where the outcome is documented. (#142)

  • Documentation now correctly specifies majority-to-minority and minority-to-majority. (#143, #110)

  • Documentation for tidy methods for all steps has been improved to describe the return value more accurately. (#148)

themis 1.0.2

Improvements

  • Many internal changes to improve consistency and slight speed increases.

themis 1.0.1

Improvements

  • Fixed bug where some upsampling functions would error if no upsampling was needed. (#119)

  • Steps with tunable arguments now have those arguments listed in the documentation.

themis 1.0.0

  • Added case weights support for step_upsample() and step_downsample()

themis 0.2.2

  • tomek() has been added, rewritten to apply to multiple classes, removing the need for the unbalanced package, which has been removed as a dependency.

themis 0.2.1

  • A bug was fixed in step_downsample() and step_upsample() that made the steps unable to be tuned. (#90)

themis 0.2.0

New steps

  • step_smotenc() have been added to implement SMOTENC which can handle categorical as well as numerical values. Thanks to @RobertGregg (#82)

Improvements and Other Changes

  • export nearmiss() functions to users.
  • Update examples to no longer use iris or okc data sets.
  • All recipe steps now officially support empty selections to be more aligned with dplyr and other packages that use tidyselect (#55)

Bug fixes

  • step_rose() now correctly allows you to use characters variables. (#26)
  • step_tomek() now ignore non-predictor variables when appropriate. (#51)
  • Fix bug where wrong ordering of columns caused error in smote(). (#76)

themis 0.1.4

  • export smote(), adasyn(), and bsmote() functions to users.

themis 0.1.3

  • Steps that use nearest neighbors gives cleaner errors.

themis 0.1.2

  • tuneable steps now properly work with tune package.
  • Steps now Retain original factor level ordering. (#22)
  • Oversampling steps now ignore non-predictor variables when appropriate. (#20)

themis 0.1.1

  • step_smote() now work regardless of order of classes. Thanks to @sebastien-foulle for point it out #14.

themis 0.1.0

  • Added a NEWS.md file to track changes to the package.