variable.java

这是用遗传编程算法来拟合曲线的一个经典程序

/*作者：徐朝*/
/*[e-mail]*/
package regression.function;
import kernel.*;
/**
*变量x的类
*/
public class Variable extends Terminal 
{

	public Variable()
	{
		symbol = "x";
	}

	public Object DeepClone() {
		return new Variable();
	}

	public String toString()
	{
		return "x";
	}

	public Object eval() {
		return new Double(x_value.x);
	}

}