@Before
	public void setUp() throws Exception {
		int i = (4*1+1)*3, o = 4, n = i+o, k = 20000;
		int[] h = new int[] { i, i+o, o };
		r = new NeuralRegressor(h,1.0/n,0,0);
		d = new IdentityData(o,i-o,1,1,false);
//		d = new XorData(i-z,z);
		DataFactory.train(r,d,k);
	}