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Freezes the Redis data base of an ArchiveAsyncFSelect to a data.table::data.table(). No further points can be added to the archive but the data can be accessed and analyzed. Useful when the Redis data base is not permanently available. Use the callback mlr3fselect.async_freeze_archive to freeze the archive after the optimization has finished.

S3 Methods

  • as.data.table(archive)
    ArchiveAsyncFSelectFrozen -> data.table::data.table()
    Returns a tabular view of all performed function calls of the Objective.

Super classes

bbotk::Archive -> bbotk::ArchiveAsync -> bbotk::ArchiveAsyncFrozen -> ArchiveAsyncFSelectFrozen

Active bindings

benchmark_result

(mlr3::BenchmarkResult)
Benchmark result.

Methods

Inherited methods


Method new()

Creates a new instance of this R6 class.

Usage

Arguments

archive

(ArchiveAsyncFSelect)
The archive to freeze.


Method learner()

Retrieve mlr3::Learner of the i-th evaluation, by position or by unique hash uhash. i and uhash are mutually exclusive. Learner does not contain a model. Use $learners() to get learners with models.

Usage

ArchiveAsyncFSelectFrozen$learner(i = NULL, uhash = NULL)

Arguments

i

(integer(1))
The iteration value to filter for.

uhash

(logical(1))
The uhash value to filter for.


Method learners()

Retrieve list of trained mlr3::Learner objects of the i-th evaluation, by position or by unique hash uhash. i and uhash are mutually exclusive.

Usage

ArchiveAsyncFSelectFrozen$learners(i = NULL, uhash = NULL)

Arguments

i

(integer(1))
The iteration value to filter for.

uhash

(logical(1))
The uhash value to filter for.


Method predictions()

Retrieve list of mlr3::Prediction objects of the i-th evaluation, by position or by unique hash uhash. i and uhash are mutually exclusive.

Usage

ArchiveAsyncFSelectFrozen$predictions(i = NULL, uhash = NULL)

Arguments

i

(integer(1))
The iteration value to filter for.

uhash

(logical(1))
The uhash value to filter for.


Method resample_result()

Retrieve mlr3::ResampleResult of the i-th evaluation, by position or by unique hash uhash. i and uhash are mutually exclusive.

Usage

ArchiveAsyncFSelectFrozen$resample_result(i = NULL, uhash = NULL)

Arguments

i

(integer(1))
The iteration value to filter for.

uhash

(logical(1))
The uhash value to filter for.


Method print()

Printer.

Usage

ArchiveAsyncFSelectFrozen$print()

Arguments

...

(ignored).


Method clone()

The objects of this class are cloneable with this method.

Usage

ArchiveAsyncFSelectFrozen$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.