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Importing Vector Graphics: The grImport Package for R

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  • Murrell, Paul

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.

Suggested Citation

  • Murrell, Paul, 2009. "Importing Vector Graphics: The grImport Package for R," Journal of Statistical Software, Foundation for Open Access Statistics, vol. 30(i04).
    • Handle: RePEc:jss:jstsof:v:030:i04
    DOI: http://hdl.handle.net/10.18637/jss.v030.i04
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