polar.plot: Plot values on a circular grid of 0 to 360 degrees

In plotrix: Various Plotting Functions

Plot values on a circular grid of 0 to 360 degrees

Description

‘⁠polar.plot⁠’ displays a plot of radial lines, symbols or a polygon centered at the midpoint of the plot frame on a 0:360 circle. Positions are interpreted as beginning at the right and moving counterclockwise unless ‘⁠start⁠’ specifies another starting point or ‘⁠clockwise⁠’ is TRUE.

If ‘⁠add=TRUE⁠’ is passed as one of the additional arguments, the values will be added to the current plot. If a ‘⁠radial.lim⁠’ argument was passed on the initial plot, it must be passed again to add values or the values will be displayed incorrectly.

Usage

 polar.plot(lengths,polar.pos=NULL,labels,label.pos=NULL,
  start=0,clockwise=FALSE,rp.type="r",loglen=FALSE,explab=FALSE,...)

Arguments

lengths	numeric data vector. Magnitudes will be represented as the radial positions of symbols, line ends or polygon vertices.
polar.pos	numeric vector of positions on a 0:360 degree circle. These will be converted to radians when passed to ‘⁠radial.plot⁠’.
labels	text labels to place on the periphery of the circle. This defaults to labels every 20 degrees. For no labels, pass an empty string.
label.pos	positions of the peripheral labels in degrees
start	The position for zero degrees on the plot in degrees.
clockwise	Whether to increase angles clockwise rather than the default counterclockwise.
rp.type	Whether to plot radial lines, symbols or a polygon.
loglen	Whether to log transform the ‘⁠length⁠’ values. Only base 10 logs are available.
explab	Whether to use the default fixed (FALSE) or exponential (TRUE) notation for the radial labels.
...	additional arguments passed to ‘⁠radial.plot⁠’ and then to ‘⁠plot⁠’.

Value

A list of the parameters altered by radial.plot.

Author(s)

Jim Lemon

See Also

radial.plot

Examples

 testlen<-c(rnorm(36)*2+5)
 testpos<-seq(0,350,by=10)
 polar.plot(testlen,testpos,main="Test Polar Plot",lwd=3,line.col=4)
 oldpar<-polar.plot(testlen,testpos,main="Test Clockwise Polar Plot",
  radial.lim=c(0,15),start=90,clockwise=TRUE,lwd=3,line.col=4)
 # reset everything
 par(oldpar)

plotrix documentation built on Nov. 10, 2023, 5:07 p.m.