quiz6.py 文件源码

def quiz19_20():
    gamma_l = [32, 2, 0.125]
    lamb_l = [0.001, 1, 1000]
    data = np.loadtxt("hw2_lssvm_all.dat")
    x_train = data[:400, :-1]
    y_train = data[:400, -1].astype(int)
    x_test = data[400:, :-1]
    y_test = data[400:, -1].astype(int)
    n = len(y_train)
    print("gamma  lamb  e_in  e_out")
    for gamma in gamma_l:
        for lamb in lamb_l:
            w = np.array(KRG(x_train, y_train, gamma, lamb, n)).flatten()
            e_in = err(x_train, y_train, (w, gamma, x_train))
            e_out = err(x_test, y_test,  (w, gamma, x_train))
            print(gamma, "  ", lamb, "  ", e_in, "  ", e_out)


# quiz19-20