Compare equivalent periods in DAX

If you do not have a full month with data, comparisons such as year-over-year (YOY) might require particular filters in order to do a like for like comparison in DAX. This article describes how to write DAX expressions comparing equivalent periods, keeping corresponding number of days in the comparison.

Use of RANKX in Power BI measures

The RANKX function in Power BI might have an unexpected behavior when applied to a column that has a specific sort order in the data model. This article explains why, and how to address this issue.


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