Before you can start with the actual analysis, you need to combine the four tables into a single table. This single combined table should contain the following columns.

在您可以开始实际分析以前，您需要把这四个表合并成一个单一的表。

youdao

Before you can start with the actual analysis, you need to combine the four tables into a single table. This single combined table should contain the following columns.

在您可以开始实际分析以前，您需要把这四个表合并成一个单一的表。

youdao