Reproducible Research Lisa Pappas 10/21/10 SDBC meeting

Goals Be able to reproduce your own results Allow others to reproduce your results Time turns each one of us into another person, and by making eort to communicate with strangers, we help ourselves to communicate with our future selves. (Schwab and Claerbout) Reproduce an entire report, manuscript, dissertation, book with a single system command when changes occur in: operating system, stat software, graphics engines, source data, derived variables, analysis, interpretation Save time Provide the ultimate documentation of work done for a paper Frank E Harrell Jr

Prior to running Sweave: Install MiKTeX: it is free and is necessary for creating PDF files from the TeX files that Sweave generates. Consider using the trial version or purchasing WinEdt 6.0. There are built in functions for generating PDF files. If you are using Windows, have R installed in a path with no spaces (C:\R vs. the default C:\Program files\R) –OR- make sure you include \usepackage{Sweave} in your program and have the file Sweave.sty in your working directory. Sweave.sty can be found ‘$R_HOME\share\texmf\tex\latex’ Have packages ‘tools’ and ‘Hmisc’ installed in R.

Diagram of process

Running the example Sweave file in R: >Sweave(‘example.Rnw’) >texi2dvi(‘example.tex’, pdf=TRUE)

Good Sweave references: Sweave homepage: Reproducible Research with R, LaTeX & Sweave: TheresaScott/ReproducibleResearch.TAScott.hand out.pdf TheresaScott/ReproducibleResearch.TAScott.hand out.pdf Additional links: 5/using-r-latex-and-sweave-for.html 5/using-r-latex-and-sweave-for.html