jcgp.backend.function

Class SymbolicRegressionFunctions.NaturalLog

java.lang.Object

jcgp.backend.function.Function

jcgp.backend.function.SymbolicRegressionFunctions.NaturalLog

Enclosing class:

SymbolicRegressionFunctions

public static class SymbolicRegressionFunctions.NaturalLog
extends Function

Protected natural log function. Returns the natural log of the absolute value of input 0. If input 0 is less than DoubleArithmetic.DIVISION_LIMIT, this returns it unchanged.

See Also:

Math

Constructor Summary

Constructors

Constructor and Description
NaturalLog()

Method Summary

Modifier and Type	Method and Description
int	getArity()
java.lang.Double	run(java.lang.Object... args) Executes the function.
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

NaturalLog

public NaturalLog()

Method Detail

run

public java.lang.Double run(java.lang.Object... args)

Description copied from class: Function

Executes the function.

Specified by:

run in class Function

Parameters:

args - the function arguments.

Returns:

the function result.

getArity

public int getArity()

Specified by:

getArity in class Function

Returns:

the arity of the function.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object