NEWS.md

In mlr-org/paradox: Define and Work with Parameter Spaces for Complex Algorithms

paradox 1.0.1-9000

• ParamSetCollection$flatten() now detaches $extra_trafo completely from original ParamSetCollection.
• Option to postfix, instead of prefix, in ParamSetCollection, c()/ps_union(), and ps_replicate().

paradox 1.0.1

• Performance improvements.

paradox 1.0.0

• Removed Param objects. ParamSet now uses a data.table internally; individual parameters are more like Domain objects now. ParamSets should be constructed using the ps() shorthand and Domain objects. This entails the following major changes:
  • ParamSet now supports extra_trafo natively; it behaves like .extra_trafo of the ps() call.
  • ParamSet has $constraint
  • ParamSet objects are now less mutable. The only properties that can be changed are values, tags, deps, constraint and extra_trafo.
  • ParamSet$is_bounded is a vector with an entry for each parameter. Use $all_bounded for the previous behavior.
  • Condition objects are now S3 objects and can be constructed with CondEqual() and CondAnyOf(), instead of CondXyz$new(). (It is recommended to use the Domain interface for conditions, which has not changed)
  • ParamSet has new fields $is_logscale, $has_trafo_param (per-param), and $has_trafo_param (scalar for the whole set).
• Added a vignette which was previously a chapter in the mlr3book
• feat: added support for InternalTuneTokens

paradox 0.11.1

• Minor bug fixes.

paradox 0.11.0

• feat: The function generate_design_sobol() generates a space-filling Sobol sequence design.
• refactor: $set_values returns the parameter set invisible.

paradox 0.10.0

• Reset .has_extra_trafo to FALSE when trafo is set to NULL.
• rd_info.ParamSet collapses vector with "\n" due changes in roxygen 7.2.0
• Add method set_values() to conveniently add parameter values.

paradox 0.9.0

• Added default_values() function to extract default values from ParamSet objects.

paradox 0.8.0

• Parameters now have a new (optional) field description.
• Improved printing of parameters in documentation (#355).
• A warning is now signaled if the package ParamHelpers is also loaded.
• Fixed some links.

paradox 0.7.1

• Sampler1D also accept ParamSets with one Param now (#335).
• Fixed sampling zero rows in Sampler1DRfun (#338).
• to_tune(), p_dbl(), and p_int() accept logscale argument for tuning on a logarithmic scale.
• to_tune can be called with only lower or only upper now and will infer the other bound if possible.

paradox 0.7.0

• ParamSet$get_values() checks whether all required parameter values are set. Required parameter are not checked anymore when new values are added to the parameter set.
• ParamSet$check_dt() accepts data.frames.
• Rename is_numeric and is_categorical to all_numeric and all_categorical.
• Rename requires to depends.

paradox 0.6.0

• ps() shortcuts for ParamSet construction, with new Domain construct and constructors p_dbl, p_int, p_lgl, p_fct, and p_uty.
• ParamSet$search_space() method that constructs tunable ParamSet from TuneToken objects, which are constructed with to_tune().

paradox 0.5.0

• Compact in-memory representation of R6 objects to save space when saving objects via saveRDS(), serialize() etc.
• Improved performance for ParamSetCollection.

paradox 0.4.0

• New public methods is_numeric() and is_categorical() for parameter sets.
• Fixed a test for upcoming release of data.table().
• Added a helper function to format parameter sets in Rd files.

paradox 0.3.0

• New function transpose() converts data.table of parameter values to a list of lists.
• New methods ParamSet$check_dt(), $assert_dt() and test_dt() can check a data.table for valid parameter values.
• Documentation updated.
• Unified style for object printers.

paradox 0.2.0

• Fixed warnings about partial argument matching.
• Enforce integer bounds in ParamInt (#258).
• Reexport data.table::as.data.table().
• Deep cloning of ParamSet$values (#273).

paradox 0.1.0

• Initial release.

mlr-org/paradox documentation built on Feb. 1, 2025, 9:42 p.m.