Is there a Multivariate PCHIP?
10 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
I am trying to create an interpolant on a higher dimensional data set similar to how pchip and ppval would work. Does anyone know if such a method is implemented in Matlab (multivariate piecewise cubic Hermite interpolating polynomial)? I would need something like pchip(x1,x2,x3,F) to return the piecewise polynomial form. The reason is that I want to gain speed by calculating the interpolation only once in the beginning and then only evaluating it. Right now I use interpn and works well but I need to make it faster. Should I try to use a neural network to approximate my hypersurface?
Any ideas or advices will be appreciated.
0 comentarios
Respuesta aceptada
Matt J
el 17 de Mayo de 2021
It will be somewhat faster to use griddedInterpolant() rather than interpn().
1 comentario
Más respuestas (0)
Ver también
Categorías
Más información sobre Interpolation en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!