## S3 method for class 'default':
stext(text, side=1, line=0, pos=0.5, margin=c(0.2, 0.2),
charDim=c(strwidth("M", cex = cex), strheight("M", cex = cex)), cex=par("cex"), ...)mtext for details.numeric specifying on which line to write on.numeric, often in [0,1], specifying the position
of the text relative to the left and right edges.numeric specifying the character expansion factor.mtext.mtext returns.mtext is used.