Plotting an NECDF file using xarray results in the correct orientation, but plotting it with Plotly Express causes it to be upside down

[AIMPED]

Hey @alexandre welcome to the forums.

Your data is fine, px.imshow() has this as it’s default behaviour. You can either use the origin parameter of px.imshow() or use go.Heatmap()

See also:

Inverted image in go.Image vs go.Heatmap?

Yes, go.Heatmap() inverts the y-axis. Instead of go.Heatmap() you could use px.imshow() which has the parameter origin which alters this behaviour. I don’t know EDIT: Quite helpful SO post: