plotrix (version 2.5-2)

floating.pie: Display a floating pie chart

Description

Displays a pie chart at an arbitrary position on an existing plot

Usage

floating.pie(xpos,ypos,x,edges=200,radius=1,col=NULL,startpos=0,
  shadow=FALSE,...)

Arguments

xpos,ypos

x and y position of the center of the pie chart

x

a numeric vector for which each value will be a sector

edges

the number of lines forming a circle

radius

the radius of the pie in user units

col

the colors of the sectors - defaults to rainbow

startpos

The starting position for drawing sectors in radians.

shadow

Logical - whether to draw a shadow

...

graphical parameters passed to polygon

Value

• The bisecting angle of the sectors in radians. Useful for placing text labels for each sector.

See Also

pie.labels, boxed.labels, polygon.shadow

Examples

plot(1:5,type="n",main="Floating Pie test",xlab="",ylab="",axes=FALSE)
 box()
 polygon(c(0,0,5.5,5.5),c(0,3,3,0),border="#44aaff",col="#44aaff")
 floating.pie(1.7,3,c(2,4,4,2,8),radius=0.5,
  col=c("#ff0000","#80ff00","#00ffff","#44bbff","#8000ff"))
 floating.pie(3.1,3,c(1,4,5,2,8),radius=0.5,
  col=c("#ff0000","#80ff00","#00ffff","#44bbff","#8000ff"))
 floating.pie(4,1.5,c(3,4,6,7),radius=0.5,
  col=c("#ff0066","#00cc88","#44bbff","#8000ff"))
 draw.circle(3.9,2.1,radius=0.04,col="white")
 draw.circle(3.9,2.1,radius=0.04,col="white")
 draw.circle(3.9,2.1,radius=0.04,col="white")
 draw.circle(4,2.3,radius=0.04,col="white")
 draw.circle(4.07,2.55,radius=0.04,col="white")
 draw.circle(4.03,2.85,radius=0.04,col="white")
 text(c(1.7,3.1,4),c(3.7,3.7,3.7),c("Pass","Pass","Fail"))