Data classification and aggregation method and system based on nuclear power plant PaaS platform

The invention discloses a data classification and aggregation method and system based on a nuclear power plant PaaS platform, and the method comprises the following steps: querying and importing related data needing to be rated and divided in the nuclear power plant PaaS through a data access module according to the needs of a user, obtaining a data set A, and transmitting the data set A into a data preprocessing module; and traversing each row of data in the data set A by using a data preprocessing module, processing columns with missing values, and converting non-numeric data into numeric data to obtain a data set A '. The method has the beneficial effects that a self-adaptive method for automatically dividing evaluation grades or layers is provided for various evaluation works in the nuclear power plant, and the use efficiency of the platform is improved. 本发明公开了一种基于核电厂PaaS平台的数据分类聚合方法及系统，为包括如下步骤：根据用户需要，利用数据接入模块对核电厂PaaS中需要进行评级划分的相关数据进行查询和导入，得到数据集A，将数据集A传入数据预处理模块；利用数据预处理模块，对数据集A中的各行数据进行遍历，对其中存在缺失值的列进行处理，并将其中非