数据集label的预处理

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代码:

# coding:utf-8
from sklearn.preprocessing import LabelEncoder
from keras.utils import np_utils

# 7种车的名字
y_train = ['Chevrolet', 'Audi', 'Lexus', 'Toyota', 'Maserati', 'Lancia', 'Renault']
print y_train

# 将字符串转为数值型
y_train = LabelEncoder().fit_transform(y_train)
print y_train

# 将普通数值型转为onehot编码
y_train = np_utils.to_categorical(y_train)
print y_train

运行结果:

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转载自blog.csdn.net/qq_24671941/article/details/84110737
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