Maybe I am missing something, but according to the help page to par (section "Color Specification"), which is referred to in the help to text argument col:
β"transparent"β or (integer) βNAβ is _transparent_, useful for filled areas (such as the background!), and just invisible for things like lines or text. but: col0 <- as.integer(NA) is.integer(col0) ### is this coercing to "integer" necessary? plot(1:10) text(1:10, col=col0) ### text is plotted ##whereas plot(1:10) text(1:10, col="transparent") ### text is not plotted # Of course, this is not terribly urgent, as a color value of 0 also plot(1:10) text(1:10, col=0) ### text is not plotted Best, Peter ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
