小编use*_*936的帖子

下面的代码假设为完整的高斯高斯（http://courses.ee.sun.ac.za/Pattern_Recognition_813/lectures/lecture03/node2.html）运行Bayes分类器，但是当我运行码。他们是：

RuntimeWarning: Mean of empty slice.
  warnings.warn("Mean of empty slice.", RuntimeWarning)

和

RuntimeWarning: Degrees of freedom <= 0 for slice
  warnings.warn("Degrees of freedom <= 0 for slice", RuntimeWarning)

这是我的代码：

def modelFull(train, test):
    err_train = 0
    err_test = 0
    x_train = []
    x_test = []
    labels = []
    train_labels = []
    test_labels = []
    for i in train:
        x_train.append(i[:-1]/255)
        labels.append(i[-1])
        train_labels.append(i[-1])
    for i in test:
        x_test.append(i[:-1]/255)
        labels.append(i[-1])
        test_labels.append(i[-1])
    x_train = np.array(x_train)
    x_0 = []
    x_1 = []
    for i …