My ambitious, but nervous student is curious about tableau to power bi migration

I have been stumped on occasion but not many of my students want to know about both, so Here I am learning how they differ. I don't want to spend too much time before I meet with her, so I told her I would lower my rate since we will be moving more slowly than usual.

From Tableau to Power BI: Understanding DAX and Building Superstore Dashboards

Introduction to DAX vs. Tableau Calculations

Power BI’s Data Analysis Expressions (DAX) represents a fundamentally different approach to data modeling and calculations compared to Tableau’s calculation language. While both tools aim to transform raw data into actionable insights, their underlying philosophies and implementation methods differ significantly. This guide focuses on key conceptual differences between DAX and Tableau’s calculation methods, with practical examples using the popular Superstore dataset.

Core Conceptual Differences

1. Row Context vs. Filter Context

Tableau Approach: Tableau primarily operates on a row-level context. Calculations evaluate expressions row by row within the current view.

DAX Approach: DAX operates based on filter context — the set of filters applied to your model. This…