22 Column-wise operations

You are reading the work-in-progress second edition of R for Data Science. This chapter is currently currently a dumping ground for ideas, and we don’t recommend reading it. You can find the polished first edition at https://r4ds.had.co.nz.

22.1 Introduction

22.1.1 Prerequisites

In this chapter we’ll continue using dplyr. dplyr is a member of the core tidyverse.