This video discusses the concepts and goals behind data preprocessing for data visualization.
It does not cover the technical aspects! For learning how to preprocess/clean data in R, check out my videos:
• The Tidyverse - R for Economists Advanced 2
• Reshape and Join/Merge - R for Economists ...
• dplyr - R for Economists Advanced 4
• Piping in dplyr - R for Economists Advanced 5
• Grouping in dplyr - R for Economists Advan...
and also the Swirl lesson on data processing/manipulation:
install.packages('swirl')
swirl::install_course("Getting and Cleaning Data")
swirl::swirl()
and then select Getting and Cleaning Data!