Creates a Graph from mlr_graphs from given ID

ppl() taks a charcter(1) and returns a Graph. ppls() takes a character vector of any list and returns a list of possibly muliple Graphs.

ppl(.key, ...)

ppls(.keys, ...)



The key of the Graph in mlr_graphs.


Additional parameters to give to constructed object. This may be an argument of the constructor of the underlying function.


The key of possibly multiple Graphs in mlr_graphs. If this is named, a named list is returned, but unlike pos() it will not set any $id slots.


Graph (for ppl()) or list of Graphs (for ppls()).



gr = ppl("bagging", graph = po(lrn("regr.rpart")),
  averager = po("regravg", collect_multiplicity = TRUE))