DataControl-class {simFrame}

Class "DataControl"

Description

Class for controlling model-based generation of data.

Objects from the Class

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

Slots

size:

Object of class "numeric" giving the number of observations to be generated.

distribution:

Object of class "function" generating the data, e.g., rnorm (the default) or rmvnorm from package mvtnorm. It should take a positive integer as its first argument, giving the number of observations to be generated, and return an object that can be coerced to a data.frame.

dots:

Object of class "list" containing additional arguments to be passed to distribution.

colnames:

Object of class "OptCharacter" ; a character vector to be used as column names for the generated data.frame, or NULL.

Extends

Class "VirtualDataControl", directly. Class "OptDataControl", by class "VirtualDataControl", distance 2.

Accessor and mutator methods

getSize

signature(x = "DataControl"): get slot size.

setSize

signature(x = "DataControl"): set slot size.

getDistribution

signature(x = "DataControl"): get slot distribution.

setDistribution

signature(x = "DataControl"): set slot distribution.

getDots

signature(x = "DataControl"): get slot dots.

setDots

signature(x = "DataControl"): set slot dots.

getColnames

signature(x = "DataControl"): get slot colnames.

setColnames

signature(x = "DataControl"): set slot colnames.

Methods

In addition to the methods inherited from "VirtualDataControl", the following are available:

generate

signature(control = "DataControl"): generate data.

show

signature(object = "DataControl"): print the object on the R console.

UML class diagram

A slightly simplified UML class diagram of the framework can be found in Figure 1 of the package vignette An Object-Oriented Framework for Statistical Simulation: The R Package simFrame. Use vignette("simFrame-intro") to view this vignette.

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

"VirtualDataControl", generate

Examples

dc <- DataControl(size = 10, distribution = rnorm,
    dots = list(mean = 0, sd = 2))
generate(dc)