Multivariate B-spline interpolation
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I've run an FEM to gather a dataset consisting of an output in response to 3 predictor inputs. Is it feasibile to interpolate this dataset using B-splines? It seems the available functions are designed with a focus on univariate (and some bivariate) circumstances. So far I have been able to find the coefficients and specified knot locations, but have not been able to construct a model from which I can interpolate, which includes all 3 predictors.
Any help would be much appreciated,
Thanks!
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