机器学习 R语言 对于多组Text类型数据进行训练和测试源码，用于鉴别是否是垃圾邮件。仅需要修改当前数据集的路径名称和label.csv的路径名称.-R for language learning machine multiple sets of Text data type training and testing source code used to identify whether it is spam. Only need to modify the current data set