Joins let you combine two data tables together based on a shared column that uniquely identifies the records, also known as a key column. When your data is spread out across multiple tables, you may need to perform one or more joins to get it all into one big table before doing other data cleaning and analysis tasks.
Link to the Kaggle Notebook code used for this video series:
www.kaggle.com/hamelg/dplyr-in-r
View the whole dplyr in R playlist here:
• dplyr: Getting Started
dplyr cheat sheet from RStudio:
www.rstudio.com/wp-content/up...
dplyr documentation:
cran.r-project.org/web/packag...
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