How does a dimension filter affect a worksheet utilizing FIXED Level of Detail (LOD) calculations?

When working with FIXED Level of Detail (LOD) calculations in Tableau, it is important to understand how dimension filters interact with these calculations. FIXED LOD expressions are evaluated independently of the view’s context, meaning that they calculate values based on the specified dimensions defined in the LOD expression itself, regardless of the filters applied to the worksheet.

The correct answer indicates that a dimension filter alters the data displayed in the worksheet, but it does not change the FIXED LOD calculation itself. This is because FIXED LOD calculations aggregate data at a certain level defined by the specified dimensions, ignoring any filters that might be applied at the worksheet level. Therefore, while the overall view may change based on the dimension filter, the actual value returned by the FIXED LOD calculation remains consistent, as it is based on the underlying data at the specified level of detail.

Other options might suggest the filter alters the FIXED LOD calculation or completely eliminates other calculations in the worksheet, which would misrepresent how FIXED LODs function in the presence of filters. Understanding this distinction is crucial when designing visualizations and interpreting results in Tableau.