plot-methods: Plot simulation results

In simFrame: Simulation Framework

Description

Plot simulation results. A suitable plot function is selected automatically, depending on the structure of the results.

Usage

## S4 method for signature 'SimResults,missing'
plot(x, y , ...)

Arguments

x	the simulation results.
y	not used.
...	further arguments to be passed to the selected plot function.

Value

An object of class "trellis". The update method can be used to update components of the object and the print method (usually called by default) will plot it on an appropriate plotting device.

Details

The results of simulation experiments with at most one contamination level and at most one missing value rate are visualized by (conditional) box-and-whisker plots. For simulations involving different contamination levels or missing value rates, the average results are plotted against the contamination levels or missing value rates.

Methods

x = "SimResults", y = "missing"

plot simulation results.

Author(s)

Andreas Alfons

References

Alfons, A., Templ, M. and Filzmoser, P. (2010) An Object-Oriented Framework for Statistical Simulation: The R Package simFrame. Journal of Statistical Software, 37(3), 1–36. doi: 10.18637/jss.v037.i03.

See Also

simBwplot, simDensityplot, simXyplot, "SimResults"

Examples

#### design-based simulation
set.seed(12345)  # for reproducibility
data(eusilcP)    # load data

## control objects for sampling and contamination
sc <- SampleControl(size = 500, k = 50)
cc <- DARContControl(target = "eqIncome", epsilon = 0.02,
    fun = function(x) x * 25)

## function for simulation runs
sim <- function(x) {
    c(mean = mean(x$eqIncome), trimmed = mean(x$eqIncome, 0.02))
}

## run simulation
results <- runSimulation(eusilcP,
    sc, contControl = cc, fun = sim)

## plot results
tv <- mean(eusilcP$eqIncome)  # true population mean
plot(results, true = tv)



#### model-based simulation
set.seed(12345)  # for reproducibility

## function for generating data
rgnorm <- function(n, means) {
    group <- sample(1:2, n, replace=TRUE)
    data.frame(group=group, value=rnorm(n) + means[group])
}

## control objects for data generation and contamination
means <- c(0, 0.25)
dc <- DataControl(size = 500, distribution = rgnorm,
    dots = list(means = means))
cc <- DCARContControl(target = "value",
    epsilon = 0.02, dots = list(mean = 15))

## function for simulation runs
sim <- function(x) {
    c(mean = mean(x$value),
        trimmed = mean(x$value, trim = 0.02),
        median = median(x$value))
}

## run simulation
results <- runSimulation(dc, nrep = 50,
    contControl = cc, design = "group", fun = sim)

## plot results
plot(results, true = means)

simFrame documentation built on Oct. 14, 2021, 5:24 p.m.