autoplot.LearnerClassifRpart: Plot for LearnerClassifRpart / LearnerRegrRpart

In mlr3viz: Visualizations for 'mlr3'

Description

Visualize trees for mlr3::mlr_learners_classif.rpart and mlr3::mlr_learners_regr.rpart using the package ggparty.

Contrary to ggparty, boxplots are shown in the terminal nodes for regression trees.

Note that learner-specific plots are experimental and subject to change.

Usage

## S3 method for class 'LearnerClassifRpart'
autoplot(object, ...)

## S3 method for class 'LearnerRegrRpart'
autoplot(object, ...)

Arguments

object	(mlr3::LearnerClassifRpart | mlr3::LearnerRegrRpart).
...	(any): Additional arguments, passed down to ggparty::autoplot.party().

Value

ggplot2::ggplot() object.

Examples

library(mlr3)
library(mlr3viz)

# classification
task = tsk("iris")
learner = lrn("classif.rpart", keep_model = TRUE)
learner$train(task)
autoplot(learner)

# regression
task = tsk("mtcars")
learner = lrn("regr.rpart", keep_model = TRUE)
learner$train(task)
autoplot(learner)

Example output

mlr3viz documentation built on July 2, 2021, 1:07 a.m.