# Quartiles In DAX

2018-09-07

To calculate the quartile, we’re going to use the PERCENTILEX.INC DAX function. The PERCENTILEX.INC function returns the number at the specified percentile. So for example, if I had numbers 0 and 100 in my data set, the 25th percentile value would be 25. The 50th percentile value would be 50 and the 75th percentile value would be 75, and you can figure out what the 100th percentile value would be.

Dustin shares an example with his NFL data set and also walks us through a couple of tricky situations.

## Flattening Dimensional Models

2019-03-18

Reza Rad explains why it makes sense to build flat dimensional models, particularly for Power BI: The article that I wrote earlier this week about the shared dimension had a lot of interest, and I’m glad it helped many of you. So I thought better to write about the basics of modeling even more. In this article, […]

## Counting Working Days with DAX

2019-03-14

Alberto Ferrari shows how we can ignore weekends in date calculations with DAX: How is it possible to compute the difference between the two dates, only computing working days and skipping weekends and holidays? Simple math is no longer useful here, and DAX does not offer a predefined function. A solution to this scenario requires […]