Creating Distinct Count calculations in DAX is pretty easy when the target of the operation is a column in the “fact table” of a star schema. When you want to apply the DISTINCTCOUNT function to a dimension attribute (such as…  Read more

Apparently you cannot pass an argument to a DAX measure. In reality, you can interact with a slicer that has the only purpose of representing a parameter used by a DAX formula. You just create a table in the Power…  Read more

In the last two weeks we published two new patterns of www.daxpatterns.com: Static Segmentation Dynamic Segmentation These two patterns offers solutions to the general problem of classifying an item by the value of a measure or of a column in…  Read more

DAX includes several statistical functions, such as average, variance, and standard deviation. Other common algorithms require some DAX code and we published an article about common Statistical Patterns on www.daxpatterns.com, including: Average Moving Average Variance Standard Deviation Median Mode Percentile…  Read more

The recent Time Patterns article published in www.daxpatterns.com contains many DAX formulas that I hope will be useful to anyone is interest in implementing time-related calculations in DAX without relying on the Time Intelligence functions. There are several reasons for…  Read more

A common question I receive from Excel users learning Power Pivot is how to handle table that have different granularities. In reality, this terminology is not the one they use: the concept of “table granularity” is used mostly by Kimball…  Read more

One of the first models I created for the many-to-many revolution white paper was the Survey one. At the time, it was in Analysis Services Multidimensional, and then we implemented it in Analysis Services Tabular and in Power Pivot, using…  Read more

In the last two years, I and Alberto Ferrari delivered many courses about Power Pivot, SSAS Tabular, and DAX. We had DAX content in many of the courses, and this created some overlapping and the lack of a clear guidance…  Read more

If you use PowerPivot and write some DAX formula, don’t miss this post on PowerPivotPro blog – if you want to get an external editor for your DAX formula, you can use Notepad++ for free – and adding the customization…  Read more

Just a few days before my session about Power Query at TechEd 2014, Microsoft released a new update that enables the scheduled data refresh of a Power Pivot workbook containing Power Query transformations. This is a very good news, because…  Read more