scipy.interpolate.PPoly.from_spline

classmethod PPoly.from_spline(tck, extrapolate=None)

Construct a piecewise polynomial from a spline

Parameters:

tck

A spline, as returned by splrep or a BSpline object.

extrapolate : bool or ‘periodic’, optional

If bool, determines whether to extrapolate to out-of-bounds points based on first and last intervals, or to return NaNs. If ‘periodic’, periodic extrapolation is used. Default is True.