An R Approach to Data Cleaning and Wrangling for Education Research
Juho Kopra, Santtu Tikka, Merja Heinäniemi, Sonsoles López‐Pernas, Mohammed Saqr · 2024
Abstract Data wrangling, also known as data cleaning and preprocessing, is a critical step in the data analysis process, particularly in the context of learning analytics. This chapter provides an introduction to data wrangling using R and covers topics such as data importing, cleaning, manipulation, and reshaping with a focus on tidy data. Specifically, readers will learn how to read data from different file formats (e.g. CSV, Excel), how to manipulate data using the package, and how to reshape data using the package. Additionally, the chapter covers techniques for combining multiple data sources. By the end of the chapter, readers should have a solid understanding of how to perform data wrangling tasks in R.