Good morning,
My graph has two lines. I would like the color to change when the value is positive or negative. Like in this example.
https://www.meteo-jarny.com/Images/Foru ... que/00.JPG
Here's the fiddle to my example, which is that my chart data is taken from a database.
https://jsfiddle.net/JP5401/g8dvzaLs/2/
I know that my two series (dnorme and dmean) must be grouped to be able to make this graph, but I have no idea how to do it.
I hope you can help me.