Clone a tree (creates a deep copy)

Source: R/node_methods.R

The method also clones object attributes (such as the formatters), if desired. If the method is called on a non-root, then the parent relationship is not cloned, and the resulting Node will be a root.

Clone(node, pruneFun = NULL, attributes = FALSE)

Arguments

node

the root node of the tree or sub-tree to clone

pruneFun

allows providing a prune criteria, i.e. a function taking a Node as an input, and returning TRUE or FALSE. If the pruneFun returns FALSE for a Node, then the Node and its entire sub-tree will not be considered.

attributes

if FALSE, then R class attributes (e.g. formatters and grViz styles) are not cloned. This makes the method faster.

Value

the clone of the tree or sub-tree

See also

SetFormat

Examples

data(acme)
acmeClone <- Clone(acme)
acmeClone$name <- "New Acme"
# acmeClone does not point to the same reference object anymore:
acme$name
#> [1] "Acme Inc."

#cloning a subtree
data(acme)
itClone <- Clone(acme$IT)
itClone$isRoot
#> [1] TRUE