[R-sig-Geo] (Linear) interpolation in three (or more) dimensions
edzer.pebesma at uni-muenster.de
Tue Jun 3 09:37:42 CEST 2014
package gstat offers simple 3D interpolation (idw, kriging), e.g.
and also spatio-temporal kriging; some memory limitations there may be
dealt with by using local kriging (see ?krigeST).
On 06/03/2014 08:27 AM, Mark Payne wrote:
> I have a dataset that consists of satellite observations on a regular
> lon-lat grid at taken at regularly time pointts. Unfortunately due to cloud
> cover, there are gaps dispersed semi-randomly throughout the 3D data array.
> I would like to fill these gaps.
> The "best" solution I guess is space-time kriging, if memory limitations
> permit. But before I go that far, I would like to do a simple 3D linear
> interpolation to fill the gaps i.e interpolating the temperature at the
> missing (lon, lat, time) points.
> The akima package does an excellent job of this in 2D, but doesn't support
> higher dimensionality. Does anyone know of a function that supports three
> or more dimensions?
> [[alternative HTML version deleted]]
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