panel.interaction2wt {HH}R Documentation

Plot all main effects and twoway interactions in a multifactor design

Description

This is the panel function for interaction2wt. The main diagonal displays boxplots for the main effects of each factor. The off-diagonals show the interaction plots for each pair of factors. The i,j panel shows the same factors as the j,i but with the trace- and x-factor roles interchanged.

Usage

panel.interaction2wt(x, y, subscripts, responselab,
                     trace.values, factor.levels, fun = mean, ...)

strip.interaction2wt(which.given, which.panel, var.name,
                     factor.levels, shingle.intervals,
                     strip.names = c(TRUE, TRUE), style = 1, ...)

Arguments

panel.interaction2wt arguments

x levels of x-factor
y Summary value of response variable at each level of x- and trace-factors.
subscripts used to get the right set of response values for the summary statistics on the off-diagonals
responselab Character name of response variable, defaults to the name of the response variable.
trace.values levels of trace-factor
fun Summary function, defaults to mean
... extra arguments, primarily color, to be passed to panel.bwplot.intermediate.hh
which.given, which.panel, var.name, factor.levels, shingle.intervals see documentation for strip.default
strip.names Force strip.names=TRUE
style force style=1

Author(s)

Richard M. Heiberger <rmh@temple.edu>

References

Heiberger, Richard M. and Holland, Burt (2004b). Statistical Analysis and Data Display: An Intermediate Course with Examples in S-Plus, R, and SAS. Springer Texts in Statistics. Springer. ISBN 0-387-40270-5.

See Also

interaction2wt, panel.bwplot.intermediate.hh

Examples

anova(aov(len ~ supp*dose, data=ToothGrowth))
interaction2wt(len ~ supp + dose, data=ToothGrowth)
bwplot(len ~ supp | dose, data=ToothGrowth, layout=c(3,1))

[Package HH version 1.5 Index]