plotrix (version 2.1-5)

gap.plot: Display a plot with a gap (missing range) on one axis

Description

Displays a plot with a missing range.

Usage

gap.plot(x,y,gap,gap.axis="y",xaxlab,xtics=NA,
  yaxlab,ytics=NA,col=par("col"),xlim,ylim,axes=FALSE,...)

Arguments

x,y

data values

gap

the range of values to be left out

gap.axis

whether the gap is to be on the x or y axis

xaxlab

labels for the x axis ticks

xtics

position of the x axis ticks

yaxlab

labels for the y axis ticks

ytics

position of the y axis ticks

col

color(s) in which to plot the values

xlim,ylim

the plot limits.

axes

logical - use the default axes or not.

...

arguments passed to plot.

Value

• nil

Details

Displays a plot omitting a range of values on one axis. Typically used when there is a relatively large gap in the overall range of one set of values. The function warns the user if any values have been omitted by being in the "gap". See axis.break for a brief discussion of plotting on discontinuous coordinates.

See Also

gap.barplot

Examples

twogrp<-c(rnorm(5)+4,rnorm(5)+20,rnorm(5)+5,rnorm(5)+24)
 gpcol<-c(2,2,2,2,2,3,3,3,3,3,4,4,4,4,4,5,5,5,5,5)
 gap.plot(twogrp,gap=c(8,16),xlab="Index",ylab="Group values",
  main="Plot gap on Y axis",col=gpcol)
 if(dev.interactive()) par(ask=TRUE)
 gap.plot(twogrp,rnorm(20),gap=c(8,16),gap.axis="x",xlab="X values",
  xtics=c(4,7,17,20),ylab="Y values",main="Plot gap on X axis") 
 par(ask=FALSE)