Using R for Introductory Statistics : John Verzani

Appendix C 355materials is no different from creating other documents, except, perhaps, the inclusion ofgraphics.Many newer word processors can import encapsulated PostScript files for figures.These are output by the dev. copy2eps () function. If your word processor imports pdffiles, these can be made using the pdf driver with a command such as> dev.print(file=filename, device=pdf)To save a graphic in a format suitable for inclusion in a word processor in Windows, usethe right mouse button to pop up the “Save as metafile…” dialog. The graphic can thenbe included in a document by inserting it as a figure.The text-processing system is freely available typesetting software that is wellsuited for technical writing. The Sweave() function of the utils package integrates withto produce documents that automatically insert R commands and output into adocument. One especially nice feature is the automatic inclusion of figures. For moreinformation on see http: //www. latex-pro j ect. org/. More information on Sweave() is available in its help page: ?Sweave.Some projects for teaching with R At the time of writing, there are at least twoprojects under way that are producing materials for using R in a classroom setting.The StatDocs project, by Deborah Nolan and coworkers, aims to create a frameworkfor presenting statistics materials using R and some add-on packages from the Omegahatproject, http://www.omegahat.org/.The Stem and Tendril project, http://www.math.csi.cuny.edu/st, by this author andcolleagues, is producing freely available projects for statistics computer labs that can beused at various levels in the statistics curriculum.