DAX Calculations and Time Intelligence for Power BI and Excel

To build truly dynamic reports in Power BI and Excel, you need to look beyond basic formulas and understand how DAX actually evaluates data. Without a solid grasp of evaluation contexts and time-based calculations, your reports can easily produce incorrect or sluggish results. This written course guides you through the core mechanics of Data Analysis Expressions (DAX). You will transition from writing simple formulas to structuring sophisticated calculations, manipulating filter contexts, and constructing robust time intelligence reports that easily compare year-over-year performance, running totals, and custom periods. What you'll learn: - Understand the fundamental difference between row context and filter context to predict exactly how your formulas behave - Apply time intelligence functions to calculate year-to-date, prior period comparisons, and moving averages - Construct clean, readable, and highly performant DAX formulas using variables - Distinguish between scalar-valued and table-valued functions to unlock advanced data modeling techniques - Manipulate evaluation contexts safely using the CALCULATE function to solve complex business logic The course starts with essential terminology and evaluation mechanics before moving step-by-step into advanced context manipulation and time-series analysis. Through clear written explanations and practical code snippets, you will build a reliable framework for solving real-world data analysis challenges. This course is designed for data analysts and business professionals who already know the basics of Power BI or Excel and want to elevate their data modeling capabilities. No advanced programming background is required. Start reading today to unlock the full analytical power of your data models.