Extent of boundary of text in R plot [duplicate]

Answer 1

The plotrix package has a function textbox() that might be useful to you. Try something like this:

require(plotrix)
txt <- "Some notes about this plot"
plot(1:5)
textbox(x = c(1, 1 + 1.1*strwidth(txt)),
        y = 4,
        textlist = txt)