Convert to Polars Backend — as_polars

Converts to a DataBackendPolars using the polars database, depending on the input type:

data.frame: Creates a new mlr3::DataBackendDataTable first using mlr3::as_data_backend(), then proceeds with the conversion from mlr3::DataBackendDataTable to DataBackendPolars.
mlr3::DataBackend: Creates a new DataBackendPolars.

There is no automatic connection to the origin file set. If the data is obtained using scanning and the data is streamed, a connector can be set manually but is not required.

Usage

as_polars_backend(data, streaming = FALSE, ...)

Arguments

data: (data.frame() | mlr3::DataBackend)
See description.
streaming: (logical(1))
Whether the data should be only scanned (recommended for large data sets) and streamed with every DataBackendPolars operation or loaded into memory completely.
...: (any)
Additional arguments, passed to DataBackendPolars.

Value

DataBackendPolars or mlr3::Task.