XonGrid is a free Excel library of functions to perform 1D, 2D, 3D, 4D and arbitrary dimension (ND) interpolations from scattered data.
- Available for 32 and 64 bits Excel versions
- Multivariate interpolation from scattered data
- Various interpolation methods: Linear, Akima, Bilinear, Nearest-neighbor, Natural-neighbors and Kriging
- 2D Cubic Spline Approximation
- Gaussian Process Regression
- Scaling of non-homogeneous parameters
- Array Formulas to speed up multiples interpolation
- Support for missing values and errors
- User defined interpolation
- Visual Basic Interface
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