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It depends.  If you only have a small number of choices for constant  
values, you could make different GPNode subclasses for each class.

If you have a large number of choices, you should create a subclass  
ERC.java, which already does all the hard work for you.

Sean

On May 10, 2008, at 7:47 PM, Peter Drake wrote:

> If I want to have various numeric constants as terminal nodes, I  
> should define a class NumericConstant that extends GPNode, with  
> each instance of this class able to hold a different value ... right?
>
> Apologies in advance for what will no doubt be a long series of  
> foolish questions as I get my head around this system.
>
> Peter Drake
> http://www.lclark.edu/~drake/
>