get_leaves {aggTrees}

Number of Leaves

Description

Extracts the number of leaves of an rpart object.

Usage

get_leaves(tree)

Arguments

tree

An rpart object.

Value

The number of leaves.

Author(s)

Riccardo Di Francesco

See Also

subtree node_membership leaf_membership

Examples

## Generate data.
set.seed(1986)

n <- 3000
k <- 3

X <- matrix(rnorm(n * k), ncol = k)
colnames(X) <- paste0("x", seq_len(k))

y <- exp(X[, 1]) + 2 * X[, 2] * X[, 2] > 0 + rnorm(n)

## Construct tree.
library(rpart)
tree <- rpart(y ~ ., data = data.frame(y, X))

## Extract number of leaves.
n_leaves <- get_leaves(tree)
n_leaves