plotrix (version 2.5-2)

dotplot.mtb: Minitab style dotplots.

Description

Create a dotplot of a data vector in the sense of ``dotplot'' as used in the Minitab (copyright) package.

Usage

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

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?

Value

• Nothing. A plot is produced as a side effect.

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

set.seed(42)
x <- rpois(100,10)
dotplot.mtb(x,main="No Y axes")
dotplot.mtb(x,yaxis=TRUE,main="Display Y axis")
dotplot.mtb(x,hist=TRUE,main="Like the \"h\" style plot")
dotplot.mtb(x,xlim=c(4,16),main="Limit the X axis")
dotplot.mtb(x,yaxis=TRUE,mtbstyle=FALSE,main="Non-MATLAB stytle")
dotplot.mtb(x,yaxis=TRUE,xlab="x",ylab="count",
 main="X and Y axis labels")