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openintro (version 1.3)

lmPlot: Linear regression plot with residual plot

Description

Plot data, the linear model, and a residual plot simultaneously.

Usage

lmPlot(x, y, xAxis = 0, yAxis = 4, resAxis = 3, resSymm = TRUE,
	wBox = TRUE, wLine = TRUE, lCol = "#00000088", lty = 1,
	lwd = 1, xlab = "", ylab = "", marRes = NULL,
	col = "#22558888", pch = 20, cex = 1.5, xR = 0.02,
	yR = 0.1, xlim = NULL, ylim = NULL, subset = NULL,
	parCustom = FALSE, myHeight = c(1, 0.45),
	plots = c("both", "mainOnly", "resOnly"), highlight = NULL,
	hlCol = NULL, hlCex = 1.5, hlPch = 20, na.rm=TRUE, ...)

Arguments

x
The x coordinates of points in the plot.
y
The y coordinates of points in the plot.
xAxis
The maximum number of x axis labels.
yAxis
The maximum number of y axis labels.
resAxis
The maximum number of y axis labels in the residual plot.
resSymm
Boolean determining whether the range of the residual plot should be symmetric about zero.
wBox
Boolean determining whether a box should be added around each plot.
wLine
Boolean determining whether to add a regression line to the plot.
lCol
The color of the regression line to be added.
lty
The line type of the regression line to be added.
lwd
The line width of the regression line to be added.
xlab
A label for the x axis.
ylab
A label for the y axis
marRes
Margin specified for the residuals.
col
Color of points.
pch
Plotting character.
cex
Plotting character size.
xR
Scaling the limits of the x axis. Ignored if xlim specified.
yR
Scaling the limits of the y axis. Ignored if ylim specified.
xlim
Limits for the x axis.
ylim
Limits for the y axis.
subset
A subset of the data to be used for the linear model.
parCustom
If TRUE, then the plotting margins are not modified automatically. This value should also be TRUE if the plots are being placed within a plot of multiple panels.
myHeight
A numerical vector of length 2 representing the ratio of the primary plot to the residual plot, in height.
plots
Not currently utilized.
highlight
Numerical vector specifying particular points to highlight.
hlCol
Color of highlighted points.
hlCex
Size of highlighted points.
hlPch
Plotting characters of highlighted points.
na.rm
Remove cases with NA values.
...
Additional arguments to plot.

See Also

makeTube

Examples

Run this code
data(satGPA)
lmPlot(satGPA$SATSum, satGPA$FYGPA)

data(gradesTV)
lmPlot(gradesTV$TV, gradesTV$Grades, xAxis=4,
	xlab='time watching TV', yR=0.2, highlight=c(1,15,20))

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