radial.plot {plotrix}R Documentation

radial.plot

Description

radial.plot displays a plot of radial lines, polygon(s) or symbols centered at the midpoint of the plot frame, the lengths, vertices or positions corresponding to the numeric magnitudes of the data values.

Usage

 radial.plot(lengths,radial.pos,radial.range,labels,label.pos,rp.type="r",
 label.prop=1.1,main="",xlab="",ylab="",line.col=par("fg"),mar=c(2,2,3,2),
 show.grid=TRUE,grid.col="gray",grid.bg=par("bg"),point.symbols=NULL,
 point.col=NULL,...)

Arguments

lengths A numeric data vector or matrix. Magnitudes will be represented as line lengths or polygon vertices. If lengths is a matrix, the rows will be considered separate data vectors.
radial.pos A numeric vector or matrix of positions in radians. These are interpreted as beginning at the right (0 radians) and moving counterclockwise. If radial.pos is a matrix, the rows must correspond to rows of lengths.
radial.range range of positions in radians. This allows a vector of lines to be spread over part of the 2*pi range of the plot.
labels character strings to be placed at the outer ends of the lines. If set to NULL, will suppress printing of labels, but if missing, the radial positions will be used.
label.pos the positions of the labels as distance from the 'center' of the plot. If missing, they will be placed at 1.1 times the maximum of lengths.
rp.type whether to draw (r)adial lines, a (p)olygon or (s)ymbols.
label.prop the label position radius as a proportion of the maximum line length.
main The title for the plot.
xlab,ylab Normally x and y axis labels are suppressed.
line.col The color of the radial lines or polygons drawn.
mar Margins for the plot. Allows the user to leave space for legends, etc.
show.grid Logical - whether to draw a circular grid.
grid.col Color of the circular grid.
grid.bg Fill color of above.
point.symbols the symbols for plotting (as in pch).
point.col colors for the symbols.
... additional arguments are passed to plot.

Details

The radial.plot family of plots is useful for illustrating cyclic data such as wind direction and velocity, activity at different times of the day, and so on. While radial.plot actually does the plotting, another function is usually called for specific types of cyclic data.

Value

nil

Author(s)

Jim Lemon

See Also

polar.plot,clock24.plot

Examples

 testlen<-rnorm(10)*2+5
 testpos<-seq(0,18*pi/10,length=10)
 testlab<-letters[1:10]
 radial.plot(testlen,testpos,main="Test Radial Lines",line.col="red",lwd=3)
 if(dev.interactive()) par(ask=TRUE)
 testlen<-c(sin(seq(0,1.98*pi,length=100))+2+rnorm(100)/10)
 testpos<-seq(0,1.98*pi,length=100)
 radial.plot(testlen,testpos,rp.type="p",main="Test Polygon",line.col="blue")
 radial.plot(testlen,testpos,rp.type="s",main="Test Symbols",point.col="green")
 par(ask=FALSE)

[Package plotrix version 1.3-5 Index]