Flow Duration Curve Visual

Hi  AnAnalyst ,

Based on your requirements, I made the following diagram.

Currently, the scatter chart does not support smooth lines. You might consider using R or Python script charts:

https://docs.microsoft.com/en-us/power-bi/desktop-r-visuals

https://docs.microsoft.com/en-us/power-bi/desktop-python-visuals

you could also post your new idea in Power BI ideas and make the feature you want coming sooner.
https://ideas.powerbi.com/forums/265200-power-bi-ideas

Here is a demo, please try it:

https://qiuyunus-my.sharepoint.com/:u:/g/personal/pbipro_qiuyunus_onmicrosoft_com/Ebe6osDtkOZMsepaEZTf4gEBjmwa0jz2OCdao7RRJQ_KQQ?e=zsLdWP

Best Regards,

Community Support Team _ Joey
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.