Support polynomial term in RBF interpolation

yuki-koyama / mathtoolbox

Mathematical tools (interpolation, dimensionality reduction, optimization, etc.) written in C++11 with Eigen

https://yuki-koyama.github.io/mathtoolbox/

MIT License

257 stars 35 forks source link

Closed yuki-koyama closed 3 years ago

yuki-koyama commented 3 years ago

This PR improves the RBF interpolation module. It now supports the polynomial term, offering some nice properties (e.g., better extrapolation).

The polynomial term is enabled by default, so this PR changes the default behavior of the RBF class.

This PR closes #76, #7, and #20.