ASTNode-class: The ASTNode class.
Description
This class represents a node in the abstract syntax tree. An ASTNode has a root. The root has children that either
point to another ASTNode, or to a leaf node, which may be of type ASTNumeric or ASTFrame.Usage
## S3 method for class 'ASTNode':
show(object)
Arguments
object
An ASTNode
class object.