SamplingPatternRandomSamplingUnits-class: Class "SamplingPatternRandomSamplingUnits"

Description

A class for storing sampling units obtained by random sampling.

Arguments

Objects from the Class

Objects can be created by calls of the form new("SamplingPatternRandomSamplingUnits", ...). However, objects are usually created by calling spsample.

Slots

sample:: Object of class "SpatialPoints", containing the sampling locations.

Extends

Class "SamplingPatternRandom", directly. Class "SamplingPattern", by class "SamplingPatternRandom", distance 2.

Methods

estimate: signature(statistic = "SamplingVariance", stratification = "CompactStratification", samplingPattern = "SamplingPatternRandomSamplingUnits", data = "data.frame"): estimates the sampling variance. See "SamplingVariance" for more details.
estimate: signature(statistic = "SpatialCumulativeDistributionFunction", stratification = "CompactStratification", samplingPattern = "SamplingPatternRandomSamplingUnits", data = "data.frame"): estimates the spatial cumulative distribution function (SCDF). See "SamplingPatternRandomSamplingUnits" for more details.
estimate: signature(statistic = "SpatialMean", stratification = "CompactStratification", samplingPattern = "SamplingPatternRandomSamplingUnits", data = "data.frame"): estimates the spatial mean. See "SpatialMean" for more details.
estimate: signature(statistic = "SpatialVariance", stratification = "CompactStratification", samplingPattern = "SamplingPatternRandomSamplingUnits", data = "data.frame"): estimates the spatial variance. See "SpatialVariance" for more details.
estimate: signature(statistic = "StandardError", stratification = "CompactStratification", samplingPattern = "SamplingPatternRandomSamplingUnits", data = "data.frame"): estimates the standard error of the spatial mean. See "StandardError" for more details.
estimate: signature(statistic = "character", stratification = "CompactStratification", samplingPattern = "SamplingPatternRandomSamplingUnits", data = "data.frame"): estimates statistic, i.e., "spatial mean", "spatial variance", "sampling variance", "standard error", SCDF.

Author

Dennis J. J. Walvoort dennis.walvoort@wur.nl, D.J. Brus, J.J. de Gruijter