CARTHyperparameters

Properties

cptunable

numberdefault 0.01≥ 0

Complexity parameter.

maxdepthtunable

integerdefault 20≥ 1≤ 30

Maximum depth of tree (rpart limit: 30).

minsplittunable

integerdefault 2≥ 1

Minimum number of observations in a node to attempt a split.

minbuckettunable

integerdefault 1≥ 1

Minimum number of observations in a terminal node.

prune_cp

number | number[] | nulldefault null≥ 0≥ 1 items

Complexity for cost-complexity pruning after the tree is built.

method

stringdefault "auto"

Splitting method. auto = set from outcome type.

one of"auto""anova""class""poisson""exp"

model

booleandefault true

Keep a copy of the model frame in the result.

maxcompete

integerdefault 4≥ 0

Number of competitor splits retained in the output.

maxsurrogate

integerdefault 5≥ 0

Number of surrogate splits retained in the output.

usesurrogate

integerdefault 2≥ 0≤ 2

How to use surrogates in the splitting process.

surrogatestyle

integerdefault 0≥ 0≤ 1

Controls the selection of the best surrogate.

xval

integerdefault 0≥ 0

Number of rpart-internal cross-validation folds.

cost

array | nulldefault null≥ 1 items

Variable costs. Must have one value per feature.

ifwtunable

booleandefault false

Inverse Frequency Weighting in classification.

Relationships