Minitab style dotplots.
Create a dotplot of a data vector in the sense of "dotplot" as used in the Minitab\mbox{\copyright} package.
dotplot.mtb(x, xlim = NULL, main = NULL, xlab = NULL, ylab = NULL,
pch = 19, hist = FALSE, yaxis = FALSE, mtbstyle=TRUE)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? |
The result of hist=TRUE looks less ugly than stacks of
dots for very large data sets.
Nothing. A plot is produced as a side effect.
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.
Barry Rowlingson B.Rowlingson@lancaster.ac.uk and Rolf Turner r.turner@auckland.ac.nz http://www.stat.auckland.ac.nz/~rolf
## Not run:
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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