SciPy

scipy.interpolate.BPoly.extend

BPoly.extend(c, x, right=True)[source]

Add additional breakpoints and coefficients to the polynomial.

Parameters :

c : ndarray, size (k, m, ...)

Additional coefficients for polynomials in intervals self.x[-1] <= x < x_right[0], x_right[0] <= x < x_right[1], ..., x_right[m-2] <= x < x_right[m-1]

x : ndarray, size (m,)

Additional breakpoints. Must be sorted and either to the right or to the left of the current breakpoints.

right : bool, optional

Whether the new intervals are to the right or to the left of the current intervals.