lmplot

From HH v3.1-42
0th

Percentile

Four types of residual plots for linear models.

Four types of residual plots for linear models. The first three are redesigns of plots that stats:::plot.lm presents. The first two show the positive residuals in col[2] and the negative residuals in color col[1]. The third and fourth use color col[1]. The fourth is based on an S-Plus panel that R\ doesn't provide.

Keywords
dplot
Usage
lmplot(lm.object, ..., main=NULL,
col=trellis.par.get("superpose.symbol")$col[1:2], ylim=NULL) Arguments lm.object Linear model object. See lm for details. col Vector of color names. Only the first two are used. If not specified, then trellis.par.get("superpose.symbol")$col[1:2] is used.

main

standard main title for plots.

ylim

standard lattice argument. It is used as specified for the residVSfitted, diagQQ, and diagplot5new plots. For the scaleLocation plot, the ylim is modified to c(0, max(abs(ylim))). The main reason for using the ylim argument is to allow visual comparison of the residuals for two different models on the same scale.

Other arguments, currently ignored.

Details

The trellis plots from the four functions residVSfitted, scaleLocation, diagQQ, diagplot5new are displayed on the current device in a coordinated display.

Value

A list of three trellis objects is returned invisibly, the first contains the result of residVSfitted and scaleLocation together. The second diagQQ, and the third diagplot5new.

residVSfitted, scaleLocation, diagQQ, diagplot5new.

• lmplot
Examples
# NOT RUN {
tmp <- data.frame(y=rnorm(100), x1=rnorm(100), x2=rnorm(100))
tmp.lm <- lm(y ~ x1 + x2, data=tmp)
lmplot(tmp.lm)
# }

Documentation reproduced from package HH, version 3.1-42, License: GPL (>= 2)

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