Description Objects from the Class Slots Extends Methods Author(s)

A class for storing sampling units obtained by random sampling.

Objects can be created by calls of the form `new("SamplingPatternRandomSamplingUnits", ...)`

. However, objects are usually created by calling `spsample`

.

`sample`

:Object of class

`"SpatialPoints"`

, containing the sampling locations.

Class `"SamplingPatternRandom"`

, directly.
Class `"SamplingPattern"`

, by class "SamplingPatternRandom", distance 2.

- 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`

.

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

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