Superscripts in axis text:
x=seq(1:5)
y=seq(2:6)
xlab= expression(paste("4"^"th"))
plot(x,y,xlab=xlab)Superscripts in axis labels for plots with several panels (subplots):
mtext(expression(paste("Irrig area, 000km"^"2")),side=2,line=2)Axis label with embedded subscripts (above examples allow subscript at the end of the string but not return to regular script (here, on y-axis):
plot(x,y,ylab="")
mtext(expression('z'['0m']*' m'),side=2,line=2)Make axes flush with intersection: in plot line, set xaxs=”i”
Rotate y-axis labels to horizontal: in plot line, set las=1
No boundary box: frame.plot=FALSE