Concatenate Trees Under a New Root — tree_concat • pjrt

Builds a new list tree whose children are the given trees, reassigning leaf indices contiguously across all children (in order).

Usage

tree_concat(children, names = NULL)

Arguments

children: (list of RTree)
The child trees.
names: (NULL | character())
Optional names for the children.

Value

A RTree.

Examples

combined <- tree_concat(
  list(build_tree(list(1, 2)), build_tree(3)),
  names = c("value", "grad")
)
tree_size(combined)
#> [1] 3