ABSTRACT
This chapter introduces basics of how to wrangle data in R. Wrangling skills will provide an intellectual and practical foundation for working with modern data. The most common way to extract data from data tables is with structured query language. This piping syntax is provided by the dplyr package. It retains the step-by-step logic of our original code, while being easily readable, and efficient with respect to memory and the creation of temporary data frames. In fact, there are also performance enhancements under the hood that make this the most efficient way to do these kinds of computations. Hadley Wickham is an influential innovator in the field of statistical computing. Along with his colleagues at RStudio and other organizations, he has made significant contributions to improve data wrangling in R.
