Tableau

Tableau for dashboards and visual analytics.

Core concepts

• Dimensions vs measures — Dimensions slice data; measures aggregate
• Shelves — Rows, columns, marks, and filters
• Calculated fields — Custom logic with Tableau's formula language
• LOD expressions — Fixed, include, exclude for different aggregation levels

Quick tips

• Use context filters to speed up dashboards by reducing data early
• Table calculations compute across the table; understand addressing and partitioning
• Parameters let users change assumptions without editing the workbook
• Prefer extracts over live connections when performance matters