A screenshot showing a Power BI matrix visual and the DAX measure used to generate dynamic alt text for it. On the left, a matrix titled “Monthly Precipitation (inches) Patterns from 2000 to 2024” displays months as rows and years as columns, with each cell containing a precipitation value and darker blue shades indicating higher rainfall. Below the matrix is the Alt Text panel with options to apply a formula. On the right, a DAX code snippet defines variables for the months with the highest and lowest precipitation and returns a narrative description summarising rainfall patterns, including which months are typically wetter or drier and dynamically inserting the maximum and minimum precipitation values.
Dynamic alt text in Power BI generated through DAX, describing rainfall patterns and highlighting the wettest and driest months.