Function test_error

src/nn.rs:454–489

()

    #[test]
    fn test_error() {

        // parameters
        let params1 = mat![
            0.1, 0.2, 0.4;
            0.2, 0.1, 2.0
        ];

        let params2 = mat![
            0.8, 1.2, 0.6;
            0.4, 0.5, 0.8;
            1.4, 1.5, 2.0
        ];

        let n = NeuralNetwork::new()
            .add_layer(3)
            .add_layer(2)
            .add_layer(3)
            .set_params(0, params1)
            .set_params(1, params2);

        let x = mat![
            0.5, 1.2, 1.5;
            1.0, 2.0, 1.0;
            3.0, 1.4, 4.2
        ];

        let t = mat![
            0.4, 1.0, 0.8;
            1.2, 0.4, 0.2;
            0.6, 0.3, 1.1
        ];
        let e = n.error(&x, &t);

        assert!(num::abs(e - 0.26807) <= 0.0001);
    }

    #[test]
    fn test_update_params() {