crudeMonteCarlo-class: Class '"crudeMonteCarlo"'

In sampSurf: Sampling Surface Simulation for Areal Sampling Methods

Description

This is the class definition that allows for the application of crude Monte Carlo sampling to downLog or standingTree objects. Examples of the class usage can be found in the Monte Carlo sampling vignette noted below.

Objects from the Class

Objects can be created by calls of the form new("crudeMonteCarlo", ...). However, an object constructor of the same name, crudeMonteCarlo, has been provided and is the preferred method for creating objects that are ensured to be valid.

Slots

Please note that diameters below are presumed to be in the same units as length, i.e., meters for “metric”, and feet for “English” units. Cross-sectional areas are in compatible units.

In addition to the slots provided by the virtual superclass “MonteCarloSampling”, the following slots are represented...

proxy:

Object of class "character": The name of the proxy function used. This should normally be the built-in “cmcProxy”, which is the default and the only proxy allowed by the constructor.

diam.s:

Object of class "numeric": A vector of n.s diameters corresponding to the sampled heights hgt.s (see below).

rho.s:

Object of class "numeric": A vector of cross-sectional areas corresponding to the diameters in diam.s.

hgt.s:

Object of class "numeric": A vector of sampled heights at which the diam.s are taken.

vol.s:

Object of class "numeric": A vector of volume estimates associated with the sampled hgt.s and associated diameters and cross-sectional areas.

volEst:

Object of class "numeric": The sample mean volume estimate of the vol.s for the bole segment.

volVar:

Object of class "numeric": The within bole variance estimate of volEst.

ci.lo:

Object of class "numeric": The lower 1-alphaLevel confidence interval on the bole volume estimate.

ci.up:

Object of class "numeric": The upper 1-alphaLevel confidence interval on the bole volume estimate.

alphaLevel:

Object of class "numeric": The two-tailed alpha-level for confidence interval construction.

trueVol:

Object of class "numeric": The true volume for the stem segment being estimated (see segBnds in the base class definition).

relErrPct:

Object of class "numeric": The relative error in volume in percent.

Extends

Class "MonteCarloSampling", directly.

Methods

plot

signature(x = "crudeMonteCarlo", y = "missing"): Displays a plot of the stem object and sampled points.

summary

signature(object = "crudeMonteCarlo"): Prints a summary of the object.

Author(s)

Jeffrey H. Gove

References

Gove, J. H. 2013. Monte Carlo sampling methods in sampSurf. Package vignette.

See Also

MonteCarloSampling, importanceSampling, controlVariate, antitheticSampling.

Examples

showClass("crudeMonteCarlo")

sampSurf documentation built on March 5, 2021, 5:06 p.m.