bundles / scipy latest / scipy / interpolate / _ndbspline / NdBSpline / design_matrix

classmethod

`scipy.interpolate._ndbspline:NdBSpline.design_matrix`

source: /scipy/interpolate/_ndbspline.py :216

Summary

Construct the design matrix as a CSR format sparse array.

Parameters

xvals : ndarray, shape(npts, ndim): Data points. xvals[j, :] gives the j-th data point as an ndim-dimensional array.
t : tuple of 1D ndarrays, length-ndim: Knot vectors in directions 1, 2, ... ndim,
k : int: B-spline degree.
extrapolate : bool, optional: Whether to extrapolate out-of-bounds values of raise a ValueError

Returns

design_matrix : a CSR array: Each row of the design matrix corresponds to a value in xvals and contains values of b-spline basis elements which are non-zero at this value.

Aliases

scipy.interpolate.NdBSpline.design_matrix