Calculating the sum of two or more columns
The total sum of all values in two or more data columns can be calculated.
About this task
![Example data](../../images/sum_columns_example_data.png)
First, a cross table is created as shown below.
![Cross table](../../images/sum_columns_cross_table_start.png)
![Cross table](../../images/sum_columns_cross_table_start.png)
Procedure
Parent topic: Examples of custom expressions