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Usage:
sidebyside([termlaby:y,labels:c,rescale:tf,showconst:tf,boxcut:int])
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Keywords:
plots
sidebyside() produces a side-by-side plot of the effects and residuals
of the current model; there must be an active model. A side-by-side
plot plots the effects for each term against the term number, showing
the relative sizes of the effects. When there are many effects or
residuals, a boxplot is made instead of showing individual effects.
There are no required arguments, but the following arguments alter
the plot; in addition, any graphics arguments are passed through.
Optional arguments are
termlaby:real Specify y-value for term labels. This can be a
single value or a vector of length equal to number
of terms.
labels:charvector Specify your own term labels.
rescale:logic Should effects be divided by their standard errors.
Default is F. This uses the standard errors as
reported by secoefs() and may not be correct for
all mixed models (secoefs() depends on terms labeled
ERRORX). Residuals are divided by root MSE.
showconst:logic Should the coefficient of the CONSTANT be shown?
Default is F.
boxcut:integer Cutoff for using a boxplot for a term instead of
plotting individual effects. Default is 20.
Example:
Cmd> y <- vector(9,13,12,43,48,57,60,65,70,77,70,91,\
15,13,20,66,58,73,75,78,90,97,108,99)
Cmd> acid<-factor(rep(run(2),rep(12,2)))
Cmd> style<-factor(rep(rep(run(4),rep(3,4)),2))
Cmd> anova("y=acid*style",silent:T)
Cmd> sidebyside() #default plot
Cmd> # specify term locations and labels
Cmd> sidebyside(termlaby:vector(-50,-40,-30,-20),\
labels:vector("a","b","c","d"),boxcut:30)
Cmd> # show the constant and rescale
Cmd> sidebyside(dumb:T,showconst:T,rescale:T)
Gary Oehlert
2003-01-15