Multiple Lines in Line chart

hI Anonymous

First, please know that you could add a "max/min" line With the Analytics pane in Power BI Desktop.

Reference here: https://docs.microsoft.com/en-us/power-bi/desktop-analytics-pane

However, it only show the max/min value of [Median of Torque], it can't distinguish from differnce categories.

"min and max per curve" should be added as a line or marker on the line chart?

"min and max per curve" means for every "Angel" point, the max/min value among three lines,

Or means that for each line, for example, when "source.name" is "Ch_0000000230", the max value is 3, the min value is 0.1.

Which understanding is right?

If first is right, as a workaround please refer to my pbix->page 2

create new measures to replace previous ones

value_a = CALCULATE(SUM(Sheet1[median of t]),FILTER(Sheet1,[category]="a"))

value_b = CALCULATE(SUM(Sheet1[median of t]),FILTER(Sheet1,[category]="b"))

value_c = CALCULATE(SUM(Sheet1[median of t]),FILTER(Sheet1,[category]="c"))

max = CALCULATE(MAX(Sheet1[median of t]),ALLEXCEPT(Sheet1,Sheet1[angle]))

min = CALCULATE(MIN(Sheet1[median of t]),ALLEXCEPT(Sheet1,Sheet1[angle]))

If the second one is right, please refer to  to my pbix->page 3

create three Max lines and Min lines separately based on [value_a],[value_b],[value_c].

Best Regards

Maggie