Create
a
PipeOp
frommlr_pipeops
from given IDa
PipeOpLearner
from aLearner
objecta
PipeOpFilter
from aFilter
objecta
PipeOpSelect
from aSelector
objecta clone of a
PipeOp
from a givenPipeOp
(possibly with changed settings)
The object is initialized with given parameters and param_vals
.
po()
taks a single obj
(PipeOp
id, Learner
, ...) and converts
it to a PipeOp
. pos()
(with plural-s) takes either a character
-vector, or a
list of objects, and creates a list
of PipeOp
s.
Arguments
- .obj
[any]
The object from which to construct aPipeOp
. If this is acharacter(1)
, it is looked up in themlr_pipeops
dictionary. Otherwise, it is converted to aPipeOp
.- ...
any
Additional parameters to give to constructed object. This may be an argument of the constructor of thePipeOp
, in which case it is given to this constructor; or it may be a parameter value, in which case it is given to theparam_vals
argument of the constructor.- .objs
character
|list
Either acharacter
ofPipeOp
s to look up inmlr_pipeops
, or a list of other objects to be converted to aPipeOp
. If this is a namedlist
, then the names are used as$id
slot for the resultingPipeOp
s.