@article{JSSv030i04, title={Importing Vector Graphics: The grImport Package for R}, volume={30}, url={https://www.jstatsoft.org/index.php/jss/article/view/v030i04}, doi={10.18637/jss.v030.i04}, abstract={This article describes an approach to importing vector-based graphical images into statistical software as implemented in a package called grImport for the R statistical computing environment. This approach assumes that an original image can be transformed into a PostScript format (i.e., the original image is in a standard vector graphics format such as PostScript, PDF, or SVG). The grImport package consists of three components: a function for converting PostScript files to an R-specific XML format; a function for reading the XML format into special Picture objects in R; and functions for manipulating and drawing Picture objects. Several examples and applications are presented, including annotating a statistical plot with an imported logo and using imported images as plotting symbols.}, number={4}, journal={Journal of Statistical Software}, author={Murrell, Paul}, year={2009}, pages={1–37} }