In this course, you will learn :
- how to perform simple joins that will allow you to combine data from multiple tables
- Discuss common issues and errors encountered when performing data analysis.
- table joins, as well as how to troubleshoot and avoid them.
- Learn how to concatenate observations from multiple tables, identify observations that are present in one table but not another, and reshape tables between long and wide formats.
- Joining Multiple data.tables
- Joins Using data.table Syntax
- Diagnosing and Fixing Common Join Problems
- Concatenating and Reshaping data.tables