A: Beginner
You’ll learn different ways to combine, group and merge your data.
Merging Data Sources with R (Dan Tofan, 2019)
Splitting and Combining Data with R (Mariah Weatherford, 2019)
B: Intermediate
Normalize data to make it appropriate for an analysis with dplyr and reshape long and wide data for further analysis.
Reshaping Data with R (Okan Bulut, 2020)
C: Advanced
Transform data encoding to enable further analysis.
Encoding Data with R (Emilee McWilliams, 2020)