Display labels on a circular grid

radial.plot.labels displays a labels on a circular plot produced by one of the radial.plot family of functions.

Usage

radial.plot.labels(lengths,radial.pos=NULL,units="radians",radial.lim=NULL,
  start=0,clockwise=FALSE,labels,adj=NULL,pos=NULL,boxed.labels=FALSE,...)

Arguments

lengths: numeric data vector. Magnitudes will be represented as the radial positions of symbols, line ends or polygon vertices.
radial.pos: numeric vector of radial positions. These will be converted to radians if the units argument is not "radians".
units: The units of radial.pos may be degrees or 24 hour clock positions. If units is "polar" or "clock24" respectively, the values of radial.pos will be converted into radians.
radial.lim: Optional radial limits for the circular plot. These must be the same as the radial limits of the original plot.
start: The zero position on the plot in the units of radial.pos.
clockwise: Whether to increase angles clockwise rather than the default counterclockwise.
labels: text labels to display on the plot.
adj: Text justification as in the text function.
pos: Text position as in the text function.
boxed.labels: Whether to use boxed.labels or text.
...: additional arguments passed to boxed.labels or text.

Details

Don't confuse this function with the radial.labels argument in the radial.plot function. This labels the values rather than the grid.

Value

nil

Author

Jim Lemon

Examples

 testlen<-c(rnorm(10)*2+5)
 # do the labels in clock24 units
 testpos<-c(6.74,8.3,10.55,12.33,13.75,15.9,17.15,19.36,21.02,23.27)
 oldpar<-clock24.plot(testlen,testpos,main="Test radial.plot.labels",
  rp.type="s",point.symbols=3,point.col="green")
 radial.plot.labels(testlen,testpos,units="clock24",labels=LETTERS[1:10],
  pos=3,col="red")

 testangle<-c(25,42,67,94,128,173,191,234,268,307)
 # now a polar plot
 polar.plot(testlen,testangle,main="Test radial.plot.labels",rp.type="p",
  poly.col="green")
 radial.plot.labels(testlen,testangle,units="polar",labels=LETTERS[1:10])

 # reset par
 par(oldpar)