Data Analysis with R Teach your students to conduct political research with R, the open source programming language and software environment for statistical computing and graphics. An R Companion to Political Analysis offers the same easy-to-use and effective style as the best-selling SPSS and Stata Companions. This new, comprehensive workbook covers descriptive statistics, data transformations, bivariate approaches (cross-tabulations and mean comparisons), controlled comparisons, statistical inference, linear correlation and regression, dummy variables and interaction effects, and logistic regression. The clear explanation and instruction is aided by the use of annotated and labeled screen shots as well as a wealth of exercises and datasets so students can apply their new skills.