Learn all the important Iterator (X) Functions in DAX for Power BI - including SUMX, AVERAGEX, MINX, and MAXX - explained step-by-step with simple examples. By the end of this video, you’ll clearly understand how these functions work row-by-row, when to use them instead of regular aggregators, and how to apply them in real Power BI reports. Full DAX playlist: Power BI Analytics playlist: Topics Covered: 00:00 – Intro to Iterator (X) Functions 01:45 – SUMX 03:50 – AVERAGEX 05:50 – MINX 06:42 – MAXX 08:50 – COUNTAX 09:58 – Summary & Wrap-Up #PowerBI #DAX #SUMX #AVERAGEX #MINX #MAXX #PowerBITutorial #DAXFunctions #DataAnalytics #BusinessIntelligence #PowerBIDAX