A class for storing a sampling pattern consisting of existing points and new points. The new points are the centers of gravity of their stratum.
Objects can be created by calls of the form new("SamplingPatternPriorPoints", ...). However, objects are usually created by calling spsample.
Class "'>SamplingPatternPurposive", directly.
Class "'>SamplingPattern", by class "SamplingPatternPurposive", distance 2.
signature(x = "CompactStratification", y = "SamplingPatternPriorPoints"): plots sampling pattern y on top of stratification x.
signature(x = "SamplingPatternPriorPoints", y = "missing"): plots sampling pattern x.