Nothing
starPie<-function(x,y,radext,values,maxval=NA,border=par("fg"),col=NA,
prop.area=FALSE,label="",labelpos=1) {
valdim<-dim(values)
if(is.null(valdim)) {
npies<-1
values<-matrix(values,nrow=1)
valdim<-dim(values)
}
nfaces<-valdim[2]
if(is.na(x[1])) x<-rep(1:valdim[1],valdim[2])
if(is.na(y[1])) y<-rep(1:valdim[2],each=valdim[1])
if(length(labelpos) < valdim[1])
labelpos<-rep(labelpos,length.out=valdim[1]*valdim[2])
if(is.na(col[1])) col<-rainbow(nfaces)
if(length(col)<nfaces) col<-rep(col,length.out=nfaces)
if(is.na(maxval)) maxval<-max(values)
# get the y adjustment
ymult<-getYmult()
if(prop.area) values<-sqrt(values)
for(spie in 1:valdim[1]) {
angles<-5*pi/2-seq(0,pi*2,length.out=nfaces+1)
# for proportional area sectors, use the square root
# adjust the maximum value to the radius
facerad<-radext*values[spie,]/maxval
for(face in 1:nfaces) {
xpos<-c(x[spie]+cos(angles[face])*facerad[face],x[spie],
x[spie]+cos(angles[face+1])*facerad[face])
ypos<-c(y[spie]+sin(angles[face])*facerad[face]*ymult,y[spie],
y[spie]+sin(angles[face+1])*facerad[face]*ymult)
polygon(xpos,ypos,col=col[face])
segments(x[spie],y[spie],x[spie]+cos(angles[face])*radext,
y[spie]+sin(angles[face])*radext*ymult)
}
if(nchar(label[spie])) {
x[spie]<-ifelse(labelpos[spie]%%2,x[spie],x[spie]+radext*(labelpos[spie]-3))
y[spie]<-ifelse(labelpos[spie]%%2,y[spie]+radext*(labelpos[spie]-2),y[spie])
hadj<-ifelse(labelpos[spie]%%2,0.5,labelpos[spie]==2)
vadj<-ifelse(labelpos[spie]%%2,labelpos[spie]==3,0.5)
text(x[spie],y[spie],label[spie],adj=c(hadj,vadj))
}
}
}
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