Add RBFInterpolator with neighbour supports (#4)

README.rst

@@ -10,11 +10,10 @@ interpax is a library for interpolation and function approximation using JAX.
 
 Includes methods for nearest neighbor, linear, and several cubic interpolation schemes
 in 1d, 2d, and 3d, as well as Fourier interpolation for periodic functions in
-1d and 2d.
+1d and 2d. Also includes a scipy like RBFInterpolator. 
 
 Coming soon:
 - Spline interpolation for rectilinear grids in N-dimensions
-- RBF interpolation for unstructured data in N-dimensions
 - Smoothing splines for noisy data
 
 

docs/api.rst

@@ -31,6 +31,7 @@ except where noted in the documentation.
     interpax.CubicSpline
     interpax.PchipInterpolator
     interpax.PPoly
+    interpax.RBFInterpolator
 
 
 Functional interface for 1D, 2D, 3D interpolation

interpax/__init__.py

@@ -10,6 +10,7 @@
     PchipInterpolator,
     PPoly,
 )
+from ._rbf import RBFInterpolator
 from ._spline import (
     AbstractInterpolator,
     Interpolator1D,