po

From mlr3pipelines v0.3.0 by Martin Binder

Shorthand PipeOp Constructor

Create

a PipeOp from mlr_pipeops from given ID
a PipeOpLearner from a Learner object
a PipeOpFilter from a Filter object
a PipeOpSelect from a Selector object

The object is initialized with given parameters and param_vals.

Usage

po(.obj, ...)

Arguments

.obj: [any] The object from which to construct a PipeOp. If this is a character(1), it is looked up in the mlr_pipeops dictionary. Otherwise, it is converted to a PipeOp.
...: any Additional parameters to give to constructed object. This may be an argument of the constructor of the PipeOp, in which case it is given to this constructor; or it may be a parameter value, in which case it is given to the param_vals argument of the constructor.

Examples

# NOT RUN {
library("mlr3")

po("learner", lrn("classif.rpart"), cp = 0.3)

po(lrn("classif.rpart"), cp = 0.3)

# is equivalent with:
mlr_pipeops$get("learner", lrn("classif.rpart"),
  param_vals = list(cp = 0.3))
# }

Documentation reproduced from package mlr3pipelines, version 0.3.0, License: LGPL-3

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po

Shorthand PipeOp Constructor

Usage

Arguments

Aliases

Examples

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