(This article was first published on SAS and R, and kindly contributed to R-bloggers)
For interactive data analysis, the default fonts used by SAS and R are acceptable, if not beautiful. However, for publication, it may be important to manipulate the fonts. For example, it would be desirable for the fonts in legends, axis labels, or other text printed in plots to approximate the typeface used in the rest of the text. Credit where it's due department: this blog entry is inspired To leave a comment for the author, please follow the link and comment on his blog: SAS and R.
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Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).