Classification is regression with a discrete finite range. Regression is often used to mean regression with infinite range, but especially since so many classi

Classification is regression with a discrete finite range. Regression is often used to mean regression with infinite range, but especially since so many classification techniques are just searching for a regular partition of an infinite range, the distinction isn't made much anymore. Whether the rare techniques that are specifically over a discrete finite range still count as regression depends on who you ask - usually yes.