Showing results for 
Search instead for 
Did you mean: 

Fabric is Generally Available. Browse Fabric Presentations. Work towards your Fabric certification with the Cloud Skills Challenge.

Resolver II
Resolver II

Dax measure that sums data by week, then returns max value

Hello folks,


I am looking for a DAX measure that returns the max value of a data column summed by week.


I have a table with two columns and millions of rows, with data and timestamp in each column. I aggregate the data so it shows a graph with one column representing a week with the summed data for that week in each column.  (Note that table columns and graph columns are different things). So far so good.


Now I want to scale the data properly, eg. showing columns with large values not as Watt W but kiloWatt kW, by dividing with 1000. In order to show all columns with the same scale, I need to calculate the "global" max value of all week columns and then divide all columns with a factor derived from this max value ( this equation is in place and working).




I have 24 * 30 hour-based data points in a table together with the timestamp for each data point. ALl data stretches one month (30 days). I am looking for a DAX measure that can do a sum-by-week of the data set, turning it into a table with four rows and two columns, with the week sum in one column and week number in the other column. Then, finally, the Dax measure returns the scalar value of the biggest weekly column.


Ideas and feedback is appreciated.


Cheers, Mike


Super User
Super User

@h4tt3n Not really enough information to go on, please first check if your issue is a common issue listed here:

Also, please see this post regarding How to Get Your Question Answered Quickly:

The most important parts are:
1. Sample data as text, use the table tool in the editing bar
2. Expected output from sample data
3. Explanation in words of how to get from 1. to 2.

@ me in replies or I'll lose your thread!!!
Instead of a Kudo, please vote for this idea
Become an expert!: Enterprise DNA
External Tools: MSHGQM
YouTube Channel!: Microsoft Hates Greg
Latest book!:
Mastering Power BI 2nd Edition

DAX is easy, CALCULATE makes DAX hard...

Helpful resources

PBI November 2023 Update Carousel

Power BI Monthly Update - November 2023

Check out the November 2023 Power BI update to learn about new features.

Community News

Fabric Community News unified experience

Read the latest Fabric Community announcements, including updates on Power BI, Synapse, Data Factory and Data Activator.

Power BI Fabric Summit Carousel

The largest Power BI and Fabric virtual conference

130+ sessions, 130+ speakers, Product managers, MVPs, and experts. All about Power BI and Fabric. Attend online or watch the recordings.

Top Solution Authors
Top Kudoed Authors