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

A class for storing composites obtained by random sampling.

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

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

.

`composite`

:Object of class

`"integer"`

, indicating to which composite sample a sampling unit belongs.`sample`

:Object of class

`"SpatialPoints"`

, containing the sampling locations.

Class `"SamplingPatternRandom"`

, directly.
Class `"SamplingPattern"`

, by class "SamplingPatternRandom", distance 2.

- coerce
`signature(from = "SamplingPatternRandomComposite", to = "data.frame")`

: coerces to`"data.frame"`

.- coerce
`signature(from = "SamplingPatternRandomComposite", to = "SpatialPointsDataFrame")`

: coerces to`"SpatialPointsDataFrame"`

.- estimate
`signature(statistic = "SamplingVariance", stratification = "CompactStratificationEqualArea", samplingPattern = "SamplingPatternRandomComposite", data = "data.frame")`

: estimates the sampling variance. See`"SamplingVariance"`

for more details.- estimate
`signature(statistic = "SpatialMean", stratification = "CompactStratificationEqualArea", samplingPattern = "SamplingPatternRandomComposite", data = "data.frame")`

: estimates the spatial mean. See`"SpatialMean"`

for more details.- getSampleSize
`signature(object = "SamplingPatternRandomComposite")`

: returns the sample size per stratum.- plot
`signature(x = "CompactStratification", y = "SamplingPatternRandomComposite")`

: plots sampling pattern`y`

on top of stratification`x`

.- plot
`signature(x = "SamplingPatternRandomComposite", y = "missing")`

: plots sampling pattern`x`

.

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

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