Prior to Level of Detail (LOD) Expressions, we had to make a extensive use of Table Calculations, but LOD has added a new element to the game and well worth looking into. While the topic can see to be a minefield, we are going to add additional links and publish our own articles about them, but in the meantime check out the Tableau Whitepaper about creating and working with LOD expressions.
Tableau’s Whitepaper (registration required) Understanding Level of Detail (LOD) Expressions can be found here: https://tableau.com/learn/whitepapers/understanding-lod-expressions
Other reading:
- Top 15 LOD Expressions: https://www.tableau.com/about/blog/LOD-expressions
- How Level of Detail LOD Expressions work in Tableau: https://onlinehelp.tableau.com/current/pro/desktop/en-us/calculations_calculatedfields_lod_overview.html
- Create Level of Detail Expressions in Tableau: https://onlinehelp.tableau.com/current/pro/desktop/en-us/calculations_calculatedfields_lod.html
- A quick guide to Tableau Level of Detail by Concentra: https://concentra.co.uk/blog/quick-guide-tableau-level-of-detail-expressions
- Tableau Fundamentals: An introduction to Level of Details by Ryan Sleeper: https://ryansleeper.com/tableau-fundamentals-introduction-level-detail-expressions