Robert Lundqvist <[EMAIL PROTECTED]> writes: > Is there any simple way to add text to the x axis in R? I have tried to > add simple characters in R without any greater sucess. As an example of > what I want to do is the added C in the following "dumb" plot (produced > with MacAnova using the option "dumb:T"): > > ++------+-------+------+-------+------+-------+------+-------++ > 1+ : *+ > | : * * | > | : * * | > | : * . | > 0.8+ : * . + > | : . | > | : * . | > | : * . | > 0.6+ : . + > | : * . | > | * . | > | : . | > | * : . | > 0.4+ : . + > | * : . | > | * : . | > | : . | > 0.2+ * : . + > | * : . | > | * * : . | > |* * * : . | > 0++------+-------+------+-------+------+-------+--.---+-------++ > -2 -1.5 -1 -0.5 0 0.5 1 C 1.5 2 > > > My attempts to use locator() and text() in R's plot() has not been working > as good as expected. Never really knows where the added symbols end up...
mtext() is your friend. > BTW, anyone who knows how such "dumb" plots could be achieved in R? This > option is avaliable in S, so a port to R shouldn't be impossible, should > it? Don't know how to do it myself however... Presumably you "just" need someone to write a device driver for it. The structure of those is somewhat different from S, so it's not a straightforward port (even if the S code was publically available). As I recall it (fortunately, it was decades ago), some cosmetic issues become tricky due to the high granularity of such line printer plots; things like alignment of strings and continuation of polylines. However if someone wants to read up on Bresenham's line drawing algorithm and all that... -- O__ ---- Peter Dalgaard Ă˜ster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html