Computing advanced measure totals

Measure totals have been a problem since the dawn of placing DAX measures into table and matrix visualizations. This issue strikes at the core of the DAX language itself, context. The problem arises because the context in a subtotal or total line for a table or matrix is effectively all rows within context. However, evaluating a DAX calculation in the context of all current rows can often produce very different and expected results. Most users want the total of the numbers displayed in the rows of the table. However, DAX does not even consider the actual numbers displayed in the rows of a table or matrix visualization when calculating the total line for a table or matrix visualization. The Totaling measures recipe in Chapter 4, Transforming Text and Numbers, demonstrates how to solve this problem. However, there are times when we actually want...