Hi The reason I use expression is to get italics. Perhaps this is possible some other way?
/A Peter Dalgaard wrote: >Andreas Svensson <[EMAIL PROTECTED]> writes: > > > >><> >> >>Hello >> >>One sometimes (quite often really ) marvel at the choice of defaults in >>R's graphic engine. >>For some obscure reason, mtext uses the typographical descender (bottom >>of letters) to align text. That is: "gG" will end up slightly higher >>that "GG". Depending on the font, "Q" might end up higher than "O". >> >>(for explanation of baseline & descender see: >>http://www.paratype.com/help/term/terms.asp?code=88) >> >> ><snip> > > >>mtext(expression(italic("Normal 1")) ,1 , line=1, at=1) >> >> ><snap> > > >>As the word "Higher" includes a descending letter (g), this factor name >>ends up higher. >>I must say I have never encountered a software that uses the >>typographical descender instead of the baseline to align text . >> >>Does anyone know how to make R use the baseline instead? Perhaps using >>adj or padj? Or do I have to do something silly as adding >>"g", col=white >>to each mtext-line to trick R into aligning the names. >> >> > >Notice that it only happens when plotting math expressions. Using > > mtext("Normal 1" ,1 , line=1, at=1,font=3) > mtext("Higher 1 " ,1 , line=1, at=2, font=3) >etc. > >does not exhibit the same effect. > >I suppose the idea is that math expressions can grow arbitrarily tall >or deep, and that the design decision (wise or not) has been to align >on the bounding box of the whole enchilada. For a workaround, if you >do need to do it with expressions, notice the phantom() construction. > > > ______________________________________________ [email protected] mailing list 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.
