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plotrix (version 3.8-4)

dotplot.mtb: Minitab style dotplots.

Description

Create a dotplot of a data vector in the sense of "dotplot" as used in the Minitab\(\mbox{\copyright}\) package.

Usage

dotplot.mtb(x, xlim = NULL, main = NULL, xlab = NULL, ylab = NULL,
            pch = 19, hist = FALSE, yaxis = FALSE, mtbstyle=TRUE)

Value

Nothing. A plot is produced as a side effect.

Arguments

x

A numeric vector.

xlim

The x limits of the plot.

main

A title for the plot; defaults to blank.

xlab

A label for the x axis; defaults to blank.

ylab

A label for the y axis; defaults to blank.

pch

The plotting symbol for the dots in the plot; defaults to a solid disc.

hist

Logical scalar; should the plot be done "histogram" style, i.e. using vertical lines rather than stacks of dots?

yaxis

Logical scalar; should a y-axis be produced?

mtbstyle

Logical scalar; should the dotplot be done in the "Minitab" style? I.e. should the zero level be at the vertical midway point?

Warnings

This function does something toadally different from the dotplot() (now dotchart()) function in the graphics package.

The labelling of the y-axis is device dependent.

Details

The result of hist=TRUE looks less ugly than stacks of dots for very large data sets.

Examples

Run this code
if (FALSE) {
set.seed(42)
x <- rpois(100,10)
dotplot.mtb(x,main="No y-axis.")
dotplot.mtb(x,yaxis=TRUE,main="With y-axis displayed.")
dotplot.mtb(x,hist=TRUE,main="An \"h\" style plot.")
dotplot.mtb(x,xlim=c(4,16),main="With the x-axis limited.")
dotplot.mtb(x,yaxis=TRUE,mtbstyle=FALSE,main="Non-Minitab style.")
dotplot.mtb(x,yaxis=TRUE,xlab="x",ylab="count",
            main="With x and y axis labels.")
}

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