How to get the parameters of a bivariate normal density ellipse?

Question

I would like to be able to extract the parameters of an ellipse drawn in a bivariate plot. By parameters I mean, the long and short axes and direction of the long axis, not just means and std devs. Is there a way?

jacaalgo · Answer

Craige, thanks for your reply. This helps a lot!

Craige_Hales · Answer

Ellipse​

may be what you need.