求翻译：它可以进行数据 分类，按照被分析对象的属性、特征, 建立不同的组类来描述事物。例如:将公司的产品销售数据按关键字分为不同的类别。 　　是什么意思？

It can be a data classification, in accordance with the properties, characteristics of the object being analyzed, to create a different set of classes to describe things. For example: the company's product sales data is divided into different categories by keyword.