- Introduction to dplyr
Start here if this is your first time using dplyr. You’ll learn the basic philosophy, the most important data manipulation verbs, and the pipe,
%>%, which allows you to combine multiple verbs together to solve real problems.
- Grouped data
To unlock the full potential of dplyr, you need to understand how each verb interacts with grouping. This vignette shows you how to manipulate grouping, how each verb changes its behaviour when working with grouped data, and how you can access data about the “current” group from within a verb.
- Two-table verbs
Most dplyr verbs work with a single data set, but most data analyses involve multiple datasets. This vignette introduces you to the dplyr verbs that work with more one than data set, and introduces to the mutating joins, filtering joins, and the set operations.
- dplyr <-> base R
How does dplyr compare to base R? This vignette describes the main differences in philosophy, and shows the base R code most closely equivalent to each dplyr verb.
- Column-wise operations
Learn how to easily repeat the same operation across multiple columns using
- Row-wise operations
In R, it’s usually easier to do something for each column than for each row. In this vignette you will learn how to use the
rowwise()function to perform operations by row. Along the way, you’ll learn about list-columns, and see how you might perform simulations and modelling within dplyr verbs.
- Programming with dplyr
Most dplyr verbs use “tidy evaluation”, a special type of non-standard evaluation. In this vignette, you’ll learn the two basic forms, data masking and tidy selection, and how you can program with them using either functions or for loops.