I'll try to explain this clearly.
Sometimes, you want to make a game where a Sprite faces in the direction the gamepad's analog stick is pointing. But, there doesn't appear to be an expression for the angle of the gamepad sticks. I think there should be an expression to get the angle of a gamepad stick.
Already, objects such as Sprites have a 360 degree angle, with 0 being to the right. You should be able to get a gamepad stick's angle using the same relative angle.
gamepad index, analog stick index
Something like that.
Example using above expression: you are tilting the stick clockwise 5 degrees from completely right, 0 degrees according to the angle system of game objects. The expression says that the gamepad's stick (the one you want, of course) is tilted towards 5 degrees. I'm not getting the deadzone-influenced axis comparison, but rather the angle the stick is pointing. I have included terribly drawn pictures.