| 1 | The R Project for Statistical Computing, various resources and manuals - https://www.r-project.org |
| 2 | American Phytopathology Society, "Ecology and Epidemiology in R" http://www.apsnet.org/edcenter/advanced/topics/EcologyAndEpidemiologyInR |
| 3 | Seefeld and Linder (2007). Statistics Using R with Biological Examples, University of New Hampshire, Durham, NH, USA. 325 pp. |
| 4 | Beckerman A.P. and Petchey O.L. (2012) Getting started with R: an introduction for biologists. Oxford University Press, Oxford, UK. |