Lattice prepanel function for confidence intervals
This prepanel function is defined so as to allow room for all confidence intervals plotted in a lattice display. Note, both lower and upper must be passed directly to
xyplot as they will be passed down to the prepanel function.
Data from the call to
Variable used to created the juxtaposed panels.
95% lower and upper bounds of
A list giving the ranges and differences in ranges of x and the lower and upper bounds of y.
Dave Armstrong (UW-Milwaukee, Department of Political Science)
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library(car) library(lattice) data(Ornstein) mod <- lm(interlocks ~ log(assets)*nation, data=Ornstein) mod.out <- intQualQuant(mod, c("log(assets)", "nation"), n=25, plot=FALSE, type="facs") xyplot(fit ~ x | contrast, data=mod.out, xlab = "Assets", ylab = "Difference In Fitted Values", lower=mod.out$lower, upper=mod.out$upper, zl=TRUE, prepanel=prepanel.ci, panel=panel.ci)
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