return new Interpolator1DPiecewisePoynomialDataBundle(new ArrayInterpolator1DDataBundle(x, y, false), new CubicSplineInterpolator(), 0., 0.);
}
@Override
public Interpolator1DDataBundle getDataBundleFromSortedArrays(final double[] x, final double[] y) {
return new Interpolator1DPiecewisePoynomialDataBundle(new ArrayInterpolator1DDataBundle(x, y, true), new CubicSplineInterpolator(), 0., 0.);
}