letter.it {RSEIS} | R Documentation |
Add letters to the corners of plots in multiple figures
letter.it(a, corn = 1)
a |
character letter for marking figure |
corn |
corner to put letter in |
Can use uppercase or lower case letters, or roman numerals.
Graphical Side Effects
Jonathan M. Lees<jonathan.lees.edu>
par(mfrow=c(2,2)) for(i in 1:4) { x = 1:10 y = rnorm(10) plot(x,y) letter.it(letters[i], 2) }