I am currently trying to learn using R by reading the book and entering the same code as in the book into R Studio. I have installed all packages mentioned on p. 57 and have managed to obtain the same results as in the book in most cases (I am
on p. 127 now). However, I am having a problem with fonts. I receive the following warnings: no font could be found for family ”Arial”. This means that texts and symbols (such as +) are not included in the plots (e.g. fig. 22 p. 111, fig. 28 p. 126). I have
installed the package extrafont, but it does not work anyway. I use a Mac - does it matter?
Postdoctoral fellow in English linguistics
University of Gothenburg
Department of Languages and Literatures