A simple mlr3misc::Dictionary storing objects of class Optimizer.
Each optimizer has an associated help page, see mlr_optimizer_[id].
This dictionary can get populated with additional optimizer by add-on packages.
For a more convenient way to retrieve and construct optimizer, see opt()/opts().
Format
R6::R6Class object inheriting from mlr3misc::Dictionary.
Methods
See mlr3misc::Dictionary.
S3 methods
as.data.table(dict, ..., objects = FALSE)
mlr3misc::Dictionary ->data.table::data.table()
Returns adata.table::data.table()with fields "key", "label", "param_classes", "properties" and "packages" as columns. Ifobjectsis set toTRUE, the constructed objects are returned in the list column namedobject.
Examples
as.data.table(mlr_optimizers)
#> Key: <key>
#> key label
#> <char> <char>
#> 1: async_design_points Asynchronous Design Points
#> 2: async_grid_search Asynchronous Grid Search
#> 3: async_random_search Asynchronous Random Search
#> 4: chain Chain Multiple Optimizers Sequentially
#> 5: cmaes Covariance Matrix Adaptation Evolution Strategy
#> 6: design_points Design Points
#> 7: focus_search Focus Search
#> 8: gensa Generalized Simulated Annealing
#> 9: grid_search Grid Search
#> 10: irace Iterated Racing
#> 11: local_search Local Search
#> 12: nloptr Non-linear Optimization
#> 13: random_search Random Search
#> param_classes
#> <list>
#> 1: ParamLgl,ParamInt,ParamDbl,ParamFct,ParamUty
#> 2: ParamLgl,ParamInt,ParamDbl,ParamFct
#> 3: ParamLgl,ParamInt,ParamDbl,ParamFct
#> 4: ParamLgl,ParamInt,ParamDbl,ParamFct
#> 5: ParamDbl
#> 6: ParamLgl,ParamInt,ParamDbl,ParamFct,ParamUty
#> 7: ParamLgl,ParamInt,ParamDbl,ParamFct
#> 8: ParamDbl
#> 9: ParamLgl,ParamInt,ParamDbl,ParamFct
#> 10: ParamDbl,ParamInt,ParamFct,ParamLgl
#> 11: ParamLgl,ParamInt,ParamDbl,ParamFct
#> 12: ParamDbl
#> 13: ParamLgl,ParamInt,ParamDbl,ParamFct
#> properties packages
#> <list> <list>
#> 1: dependencies,single-crit,multi-crit,async bbotk,rush
#> 2: dependencies,single-crit,multi-crit,async bbotk,rush
#> 3: dependencies,single-crit,multi-crit,async bbotk,rush
#> 4: dependencies,single-crit,multi-crit bbotk
#> 5: single-crit bbotk,adagio
#> 6: dependencies,single-crit,multi-crit bbotk
#> 7: dependencies,single-crit bbotk
#> 8: single-crit bbotk,GenSA
#> 9: dependencies,single-crit,multi-crit bbotk
#> 10: dependencies,single-crit bbotk,irace
#> 11: dependencies,single-crit bbotk
#> 12: single-crit bbotk,nloptr
#> 13: dependencies,single-crit,multi-crit bbotk
mlr_optimizers$get("random_search")
#>
#> ── <OptimizerBatchRandomSearch> - Random Search ────────────────────────────────
#> • Parameters: batch_size=1
#> • Parameter classes: <ParamLgl>, <ParamInt>, <ParamDbl>, and <ParamFct>
#> • Properties: dependencies, single-crit, and multi-crit
#> • Packages: bbotk
opt("random_search")
#>
#> ── <OptimizerBatchRandomSearch> - Random Search ────────────────────────────────
#> • Parameters: batch_size=1
#> • Parameter classes: <ParamLgl>, <ParamInt>, <ParamDbl>, and <ParamFct>
#> • Properties: dependencies, single-crit, and multi-crit
#> • Packages: bbotk