scipy/scipy — pull request #2979 by pv (2013-10-11 20:46:16+00:00)
Title: ENH: interpolate: add the rescale argument to griddata and NearestNDInterpolator

When it was added to the linear and cubic nd interpolators, the nearest-neighbor one and griddata() were missed.

Also, refactor NDInterpolatorBase to avoid some work that is unnecessary in the nearest neighbor interpolator.