Nothing
corner.label<-function(label=NULL,x=-1,y=1,xoff=NA,yoff=NA,figcorner=FALSE,...) {
if(is.na(xoff)) xoff<-strwidth("m")/2
if(is.na(yoff)) yoff<-strheight("m")/2
par.usr<-par("usr")
xpos<-par.usr[(3+x)/2]
ypos<-par.usr[(3+y)/2+2]
if(figcorner) {
par.pin<-par("pin")
xplotrange<-par.usr[2]-par.usr[1]
yplotrange<-par.usr[4]-par.usr[3]
par.mai<-par("mai")
xmar<-xplotrange*par.mai[3+x]/par.pin[1]
ymar<-yplotrange*par.mai[2+y]/par.pin[2]
xpos<-xpos+x*xmar
ypos<-ypos+y*ymar
}
if(!is.null(label)) {
text(xpos-x*xoff,ypos-y*yoff,label,adj=c((1+x)/2,(1+y)/2),xpd=TRUE,...)
}
return(list(x=xpos,y=ypos))
}
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