What is R?
R is a free software environment that includes a set of base packages for graphics, math, and statistics, with other more specialized packages available.
Feedback
We would appreciate feedback for improving these modules and information about how they have been used for study and teaching. Please send your feedback to kgarrett@ksu.edu. Please include the following text in the e-mail subject line, "Feedback on R Modules", to make sure your comments are received.
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The following modules have been published in the open-access peer-reviewed journal The Plant Health Instructor. PLEASE NOTE THAT THE ADDRESSES HAVE RECENTLY CHANGED.
An introduction to the R programming environment
DOI:10.1094/PHI-A-2007-1226-02.K. A. Garrett, P. D. Esker, and A. H. Sparks. 2007. The Plant Health Instructor.
Ecology and epidemiology in R: Disease progress over time
DOI:10.1094/PHI-A-2008-0129-02.A. H. Sparks, P. D. Esker, M. Bates, W. Dall' Acqua, Z. Guo, V. Segovia, S. D. Silwal, S. Tolos, and K. A. Garrett. 2008. The Plant Health Instructor.
Ecology and epidemiology in R: Modeling dispersal gradients
DOI:10.1094/PHI-A-2007-1226-03.P. D. Esker, A. H. Sparks, G. Antony, M. Bates, W. Dall' Acqua, E. E. Frank, L. Huebel, V. Segovia, and K. A. Garrett. 2007. The Plant Health Instructor.
Ecology and epidemiology in R: Spatial analysis
DOI:10.1094/PHI-A-2008-0129-03.A. H. Sparks, P. D. Esker, G. Antony, L. Campbell, E. E. Frank, L. Huebel, M. N. Rouse, B. Van Allen, and K. A. Garrett. 2008. The Plant Health Instructor.
Ecology and epidemiology in R: Disease forecasting
DOI:10.1094/PHI-A-2008-0129-01.P. D. Esker, A. H. Sparks, L. Campbell, Z. Guo, M. N. Rouse, S. D. Silwal, S. Tolos, B. Van Allen, and K. A. Garrett. 2008. The Plant Health Instructor.