moderndid.BSpline.derivative#

method

BSpline.derivative(derivs=1, complete_basis=True)[source]#

Compute derivatives of B-spline basis functions.

Parameters:

derivsint, default=1: The order of the derivative to compute. Must be a positive integer.
complete_basisbool, default=True: If True, return the complete derivative matrix. If False, the first column is dropped.

Returns:

numpy.ndarray: The matrix of B-spline derivatives.