On Mon, 27 Sep 2021 14:54:53 -0700 Bert Gunter <bgunter.4...@gmail.com> wrote:
> ... and also note in the *Color Specification* section of ?par, to > which ?points points, > > "Additionally, "transparent" is transparent, useful for filled areas > (such as the background!), and just invisible for things like lines or > text. In most circumstances (integer) NA is equivalent to > "transparent" (but not for text and mtext)." > > So an NA specification for col (or part of col, if a vector) plots the > point in "transparent" rather than omitting it. > > Now if your question is *why* the specifications for a color of NA are > different in points() and text(), I don't have a clue. But the > difference is documented. Thanks Bert. Clear enuff! cheers, Rolf -- Honorary Research Fellow Department of Statistics University of Auckland Phone: +64-9-373-7599 ext. 88276 ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
