PolynomialRange

class superglm.PolynomialRange(lo: float | str, hi: float | str, degree: int, join: str = 'tangent')

Bases: object

Pin a spline to a polynomial of degree (0-3) on [lo, hi].

join="tangent" carries the curve’s value and slope across each edge; "kink" carries only its value, so the slope may change there; "smooth" keeps the spline’s own continuity. On an ordered term lo and hi may be band names.