Introduction to dplyr

What is dplyr? Well, dplyr can be perceived as a grammar of data manipulation. It has been created for the R community by Hadley Wickham, Romain Francois, and RStudio.

What does dplyr give the Tableau user? We will use dplyr in order to cleanse, summarize, group, chain, filter, and visualize our data in Tableau.

Summarizing the data with dplyr

Firstly, let's import the packages that we need. These packages are listed in the following table, followed by the code itself.

Packages required for the hands-on exercise:

Package Name	Description	Reference
WDI	Search, extract, and format data from the World Bank's World Development Indicators	https://cran.r-project.org/web/packages/WDI/index.html
dplyr	dplyr is a grammar of data manipulation

As we walk through the script, the first thing we need to do is install the packages.

Once you have installed the packages, we need to call each library.

Once we have called the libraries, then we need to obtain the data from the...