data holding X, y, and Z data
NodeLessThan * clone_impl() const override
NodeLessThan * rnd_clone_impl() const override
void evaluate(const Data &data, State &state)
Evaluates the node and updates the state states.
void eval_eqn(State &state)
Evaluates the node symbolically.
Represents nodes in a program.
contains various types of State actually used by feat