One of the most time consuming steps in any data analysis is cleaning the data and getting it into a format that allows analysis. In this section, you will learn all about tools in R that make data wrangling a snap.
You will need to have the following packages installed
pkgs <- c('reshape2', 'plyr', 'ggplot2', 'dplyr', 'data.table', 'Lahman')
install.packages(pkgs)