Mastering Time-Sensitive Data Visualization in Power BI: A Journey Through Rates and Indexes
PBIX file available for download at the end of this article.
Introduction
Rates and indexes can be very powerful in data analysis, helping us compare phenomena on a same scale. However, visualizing rates or indexes in Power BI line or area charts can be challenging, particularly when it involves freezing values at specific dates for accurate representation.
Rates or indexes often depend on historical values at specific points in time (e.g., stock/asset prices on the earliest date in your data). The main challenge is to ‘freeze’ these historical values in your calculations, despite changing date ranges in your visualizations...
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