Recall that the goal of this example is spatial prediction. In particular, you would like to produce a contour map or surface plot on a regular grid of predicted values based on ordinary kriging.

With inverse distance weighting and simple kriging, we assumed that the underlying spatial trend was essentially constant, or at least wasn’t determined by external information. This is generally a ...

Spatial prediction, in general, is any prediction method that incorporates spatial dependence. A simple and popular spatial prediction method is ordinary kriging. Ordinary kriging requires a model of ...

With inverse distance weighting we interpolated to new, unobserved locations by using a weighted average of the values at sampled locations, with the weights inversely proportional to the distance to ...