Beispiel #1
0
func InjectEqn_Vanilla(p1 Expr, egp *prob.TreeParams, rng *rand.Rand) Expr {
	eqn := p1.Clone()
	eqn.CalcExprStats(0)

	s1 := rng.Intn(eqn.Size())
	s2 := s1
	e2 := eqn.GetExpr(&s2)

	egp.CurrSize = eqn.Size() - e2.Size()
	egp.CurrDepth = e2.Depth()
	egp.ResetTemp()

	// not correct (should be size based)
	new_eqn := exprGrow(-1, ExprGenDepth, egp, rng)
	//   eqn.SetExpr(&s1, new_eqn )
	SwapExpr(eqn, new_eqn, s1)

	eqn.CalcExprStats(0)
	return eqn
}