spcosa (version 0.4-2)

SamplingVariance-class: Class "SamplingVariance"

Description

The sampling variance is estimated by means of Equation 7.14 in de Gruijter et al., (2006).

Objects from the Class

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

Slots

description:

Object of class "character" A description op the statistic.

Extends

Class "Statistic", directly.

Methods

estimate

signature(statistic = "SamplingVariance", stratification = "CompactStratification", samplingPattern = "SamplingPatternRandomSamplingUnits", data = "data.frame"): estimates the sampling variance, given a stratification, a sampling pattern and data.

estimate

signature(statistic = "SamplingVariance", stratification = "CompactStratificationEqualArea", samplingPattern = "SamplingPatternRandomComposite", data = "data.frame"): estimates the sampling variance, given a stratification, a sampling pattern and data.

Author

Dennis J. J. Walvoort , D.J. Brus, J.J. de Gruijter

References

de Gruijter, J. J., Brus, D. J., Bierkens, M. F. P., and Knotters, M. (2006) Sampling for Natural Resource Monitoring Berlin: Springer-Verlag.