changes to (eventually) support poly regression

Changes to (eventually) support poly regression, with README fixes.

changes to (eventually) support poly regression

1.2.0

changes to (eventually) support poly regression

init?() can now fail on nonsense parameters

1.1.0

init?() now fails on nonsense input

Working out package details

1.0.1

working out package details

first release

1.0.0

first commit