Java实现将movielens各种规模数据的划分为测试集和训练集-Split movielens dataset to trainset and test set

以数据分割为中心进行探讨对数据进行分割，可缩小待访问数据对象的范围或磁盘空间，提高检索性能，把分割后的数据放到不同的磁盘上，提高数据库并行访问的能力-To split the data into the data center to explore split, the data object to be accessed can be reduced scope or disk space to improve the retri performance, the data is divid

首先对数据进行拆分，分为测试集与训练集，通过训练集进行贝叶斯网络的建模，最后利用建立的模型进行预测或分类任务的R语言代码-First, the data is split into a training set and test set, Bayesian network modeling through the training set, and finally the use of the model to predict or classify tasks R language code