The R logo is © 2016 The R Foundation.
You can distribute the logo under the terms of theCreative CommonsAttribution-ShareAlike 4.0 International license (CC-BY-SA 4.0) or(at your option) theGNU General PublicLicense version 2 (GPL‑2).
It is available in raster and vector formats:
TheCC-BY-SA 4.0 license allows you to share andadapt the logo for any purpose, including commercial use, provided thatyou give appropriate credit, provide a link to the license, and indicateif any changes were made. It is alsoone-waycompatible with theGNU General PublicLicense version 3 (GPL‑3). However, CC-BY-SA 4.0 is not compatiblewith GPL‑2. If you wish to incorporate the logo into works licensedunderGPL-2 then you must use the GPL-2 license for thelogo.
Note thatspecialconsiderations apply when using the GPL-2 license for the logo orwhen incorporating it into works licensed under GPL-3 . In particular,the GPL includes the concept ofsource, which is defined as“the preferred form of the work for making modifications to it”. Weconsider the vector version of the R logo in SVG format to be the sourceby this definition.