Syntactic Sugar for Feature Selection Objects Construction

Functions to retrieve objects, set parameters and assign to fields in one go. Relies on mlr3misc::dictionary_sugar_get() to extract objects from the respective mlr3misc::Dictionary:

fs() for a FSelector from mlr_fselectors.
fss() for a list of FSelectors from mlr_fselectors.
trm() for a bbotk::Terminator from mlr_terminators.
trms() for a list of Terminators from mlr_terminators.

Usage

fs(.key, ...)

fss(.keys, ...)

Arguments

.key: (character(1))
Key passed to the respective dictionary to retrieve the object.
...: (any)
Additional arguments.
.keys: (character())
Keys passed to the respective dictionary to retrieve multiple objects.

Value

R6::R6Class object of the respective type, or a list of R6::R6Class objects for the plural versions.

Examples

# random search fselector with batch size of 5
fs("random_search", batch_size = 5)
#> 
#> ── <FSelectorBatchRandomSearch>: Random Search ─────────────────────────────────
#> • Parameters: batch_size=5
#> • Properties: single-crit and multi-crit
#> • Packages: mlr3fselect

# run time terminator with 20 seconds
trm("run_time", secs = 20)
#> 
#> ── <TerminatorRunTime> - Run Time ──────────────────────────────────────────────
#> • Parameters: secs=20
#> • Terminators: