|Maintainer||Jan Snajder <email@example.com>|
An interface to genetically programmable expressions.
This typeclass defines an interface to expressions
that can be genetically programmed. The operations that must be
provided by instances of this class are used for the generation
of random individuals as well as crossover and mutation operations.
(An instance for members of the
Data typeclass is provided in
Exchanges subtrees of two expressions:
exchange e1 n1 e2 n2 replaces the subexpression of
e1 rooted in node
n1 with the subexpression of
e2 rooted in
n2, and vice versa.
Maps a monadic transformation function over the immediate children of the given node.
Maps a query function over the immediate children of the given node and returns a list of results.
A list of indices of internal (functional) and external (terminal) nodes of an expression.
Adjusts a subexpression rooted at the given node by applying a monadic transformation function.
Number of nodes an expression has.
The depth of an expression. Equals 1 for single-node expressions.