posterior_trees_BART {tidytreatment}

Get posterior tree draws into tibble format from BART model

Description

Tibble grouped by iteration ('iter') and tree id ('tree_id'). All information calculated by method is included in output.

Usage

posterior_trees_BART(model, label_digits = 2)

Arguments

model

BART model.

label_digits

Rounding for labels.

Value

A tibble with columns to

iter

Integer describing unique MCMC iteration.

tree_id

Integer. Unique tree id with each 'iter'.

node

Integer describing node in tree. Unique to each 'tree'-'iter'.

parent

Integer describing parent node in tree.

label

Label for the node.

tier

Position in tree hierarchy.

var

Variable for split.

cut

Numeric. Value of decision rule for 'var'.

is_leaf

Logical. 'TRUE' if leaf, 'FALSE' if stem.

leaf_value

child_left

Integer. Left child of node.

child_right

Integer. Right child of node.