Dear Researchers,

for my work I need to test several interoplation tec.. I found these:


1. Inverse Distance Weighted (IDW) interpolation: gstat
2. Multilevel B-spline Approximation: MBA
3. Thin Plate Spline: fileds
4. Bivariate Linear Interpolation: Akima
5. Bivariate cubic spline interpolation: Akima
6  Nearest Neighbour: gstat with idw( ... , nmax=1)

but I can not find

7. Modifed Quadratic Shepard
8. completely regularised splines
9. spline with tension
10. inverse quadratic

some people know if are there package to use these types of interpolation?

thanks in advance
Gianni

	[[alternative HTML version deleted]]

