classesmethods.relaimpo {relaimpo}R Documentation

Classes and Methods in Package relaimpo

Description

Output objects from package relaimpo have classes relimplm (output from calc.relimp), relimplmboot (output from boot.relimp) and relimplmbooteval (output from booteval.relimp). For classes relimplm and relimplmbooteval, there are methods for plotting and printing, usage of which is described below. For class relimplm, there is in addition a method for extracting slots of the class with $. Since class relimplmbooteval inherits from relimplm, this method can also be applied there.

Usage

## S3 method for class 'relimplm':
print(x,...)

## S3 method for class 'relimplm':
plot(x,...,names.abbrev=4, ylim=NULL, main=NULL, cex.title=1.5)

## S3 method for class 'relimplmbooteval':
print(x,...)                                    

## S3 method for class 'relimplmbooteval':
plot(x, ..., lev=max(x@level), names.abbrev=4, ylim=NULL, main=NULL, cex.title=1.5)   

Arguments

x x is an output object from package relaimpo of the required class
... ... further arguments to function plot
names.abbrev names.abbrev is an integer that provides the number of characters to which the bar labels are shortened (default: 4).
ylim The plot routines try to use appropriate scaling. If adjustments are needed, ylim can be used like usually on plot.
main The plot routine uses a default title based on the reponses name. If adjustments are desired, main can be used for specifying a different title. Note that only the first title is affected (in case of plot.relimpbooteval, there is also a sub title that cannot be changed).
cex.title cex.title specifies the text size for the overall title. Thus, the par option cex.main can be used for specifying the size of individual plot titles.
lev lev is a numeric that provides the confidence level to be plotted (default: maximum available confidence level).

Details

Print and show methods produce annotated output for calc.relimp and booteval.relimp. The plot methods produce barplots of relative contributions, either of the metrics alone for output objects of class relimplm from function calc.relimp, or of the metrics with lines indicating confidence intervals for output objects of class relimplmbooteval from function booteval.relimp.

Most par() options can be set and should work on plot. Exceptions: mfrow, oma and mar are set by the plot function, depending on the number of metrics to plot and the amount of annotating text required.

In addition, there is a method that allows using $ for extracting slots of classes relimplm and relimplmbooteval, i.e. elements from results of functions calc.relimp and booteval.relimp can be extracted as though the output objects were lists.

Author(s)

Ulrike Groemping, TFH Berlin

References

Go to http://www.tfh-berlin.de/~groemp for further information and references.

See Also

See also relaimpo, calc.relimp, booteval.relimp, relimplm-class, relimplmboot-class, relimplmbooteval-class


[Package relaimpo version 1.2 Index]