extractLeafSymbols

toName

expr

Whether to copy all attributes of <code>x</code> to the
result object.

copyAttributes


<code>toName</code> converts a character string <code>x</code> to an R symbol / name,
while copying all attributes iff <code>copyAttributes</code> is <code>TRUE</code>.
In the case that <code>x</code> is not a character string, a copy of the object
is returned as-is.
<code>extractLeafSymbols</code> returns the set of symbols (names) at the leafs
of an expression <code>expr</code>. The symbols are returned as character strings.


RGP is a simple modular Genetic Programming (GP) system build in
pure R. In addition to general GP tasks, the system supports Symbolic
Regression by GP through the familiar R model formula interface. GP
individuals are represented as R expressions, an (optional) type system
enables domain-specific function sets containing functions of diverse
domain- and range types. A basic set of genetic operators for variation
(mutation and crossover) and selection is provided.

toName: Functions for handling R symbols / names

Description

Usage

Arguments

Value