InterpolatingSpline

Create an interpolating spline from canonical solved state.

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Declaration

 self = InterpolatingSpline(options)

Parameters

• options.S spline degree scalar or vector with one entry per dimension
• options.knotAxes ordered knot-axis objects defining the spline basis
• options.xi interpolating coefficient vector or array
• options.gridAxes ordered interpolation-grid axis objects
• options.xMean optional additive output offset
• options.xStd optional multiplicative output scale

Returns

• self InterpolatingSpline instance

Discussion

Use this low-level constructor when you already have the interpolation knot axes, coefficient state, and grid axes. For ordinary interpolation from gridded samples, use InterpolatingSpline.fromGriddedValues(...).

  spline = InterpolatingSpline( ...
      S=[3 3], ...
      knotAxes=SplineAxis.arrayFromVectors(knotPoints), ...
      xi=xi, ...
      gridAxes=SplineAxis.arrayFromVectors({x, y}));