Advance your Data & AI career with 50 days of live learning, dataviz contests, hands-on challenges, study groups & certifications and more!
Get registeredJoin us at FabCon Atlanta from March 16 - 20, 2026, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM. Register now.
Hi,
In the image, you can see that the Custom column is a List of a List. Each list within a list has a set of numbers. My objective is to take the Maximum of each list within the list. How can this be done?
Thank you.
if you want a maximum maximum even further, then I think they can handle it themselves
Table.AddColumn(
Table.FromColumns({[Custom]}),"MaxValue",
(x) => List.Max(x[Column1])
)[MaxValue]Thank you for replying but that is not the result i want. In the Custom.1 column, i want to see 45 in the first row i.e. the maximum of each list of numbers within that row's list.
I didn't understand, can you explain how 45 should be in the first line
Hi,
When you click on the first list entry under the Custom column of Row 1, you will see 4 numbers in the data pane below - 40,45,33,38. The maximum of these numbers is 45 and that is what i want to see either in the Custom.1 column of row 1 or in the Custom column itself. The same logic is for the other rows as well.
Excuse me again, something is not clear, or I have other numbers 24.5, 31.40
, pin the screenshot
Hi,
Sorry for the confusion and thank you for offering a helping hand. In the screenshot that you shared with me 4 hours ago, you will see those numbers.
Is this what you are looking for?
Share sample pbix file to help you.
Join the Fabric FabCon Global Hackathon—running virtually through Nov 3. Open to all skill levels. $10,000 in prizes!
Check out the October 2025 Power BI update to learn about new features.
| User | Count |
|---|---|
| 79 | |
| 38 | |
| 31 | |
| 27 | |
| 27 |