Perhaps the documentation could be clearer, though. (I've been confused by it also.) How about:
adj allows adjustment of the text with respect to (x, y). Values of 0, 0.5 and 1 specify that text will appear right of/above, centred around, and left of/below the anchor point, respectively. On Wed, 19 Sep 2018 at 08:31, peter dalgaard <pda...@gmail.com> wrote: > Exactly. And left alignment means that the left end of the text is aligned > with the anchor point, etc. So documentation is correct. > > -pd > > > On 19 Sep 2018, at 01:33 , Jim Lemon <drjimle...@gmail.com> wrote: > > > > Hi Simon, > > I think the conventions of typesetting are to blame. Think of an > > invisible box around the text being displayed. > > __________________ > > |Left justification | > > |-----------------------------| > > meaning that the text _starts_ at the left of the field and is to the > > right of the text position specified > > __________________ > > | Right justification| > > |-----------------------------| > > > > meaning that the text _ends_ at the right of the field and is to the > > left of the text position. Can't do the top and bottom justification > > this way, but I think you get the idea. > > > > Jim > > > > On Wed, Sep 19, 2018 at 9:13 AM Simon Dedman <simonded...@gmail.com> > wrote: > >> > >> Original stack overflow post here: > >> > https://stackoverflow.com/questions/52194719/r-graphic-text-package-adj-parameter-order-wrong-incorrect-reversed > >> > >> Hopefully this is now the appropriate place to post this as the above > post > >> got a single comment of agreement. > >> > >> Content: > >> > >> I believe R core package graphics text function's adj parameter is > >> incorrectly described in the manual > >> <https://stat.ethz.ch/R-manual/R-devel/library/graphics/html/text.html> > and > >> would be grateful if someone could confirm this before I submit a bug > report > >> <https://www.r-project.org/bugs.html>. > >> > >> adj text: > >> > >> adj allows adjustment of the text with respect to (x, y). Values of 0, > 0.5, > >> and 1 specify left/bottom, middle and right/top alignment, respectively. > >> > >> Since text controls these labels and not the points which have already > been > >> plotted, I can't see how "with respect to x,y" can mean anything other > than > >> "in this direction relative to their points". > >> > >> However the order is reversed: 0,0 (supposedly left & bottom) is top & > >> right; 1,1 (supposedly right & top) is left and bottom. > >> > >> Reproducible example: > >> > >> tens = 1:10 > >> plot(tens, tens, xlab = "adj 0,0 left/bottom") > >> text(tens, tens, labels = letters[tens], adj = c(0,0)) > >> plot(tens, tens, xlab = "adj 0.5,0.5 middle") > >> text(tens, tens, labels = letters[tens], adj = c(0.5,0.5)) > >> plot(tens, tens, xlab = "adj 1,1 right/top") > >> text(tens, tens, labels = letters[tens], adj = c(1,1)) > >> > >> Thanks. > >> > >> [[alternative HTML version deleted]] > >> > >> ______________________________________________ > >> R-package-devel@r-project.org mailing list > >> https://stat.ethz.ch/mailman/listinfo/r-package-devel > > > > ______________________________________________ > > R-package-devel@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-package-devel > > -- > Peter Dalgaard, Professor, > Center for Statistics, Copenhagen Business School > Solbjerg Plads 3, 2000 Frederiksberg, Denmark > Phone: (+45)38153501 > Office: A 4.23 > Email: pd....@cbs.dk Priv: pda...@gmail.com > > ______________________________________________ > R-package-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-package-devel > -- Sent from Gmail Mobile [[alternative HTML version deleted]] ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
