In this tutorial we’ll study data visualization using the ggplot2 package in R. The ggplot2 package is one of the most popular packages in data science.
First we’ll study how to construct various bar charts and graphs using ggplot2 and then we’ll study how to plot regression lines and trend lines in R.
In an earlier tutorial we focused on measures of central tendency and variation. Now we’ll look at some other measures that are equally important for preliminary data analysis.
There are a wide variety of data types in R. First we will try to understand what the different data types are and then we will move on to their applications.
So, let us get into the types of data.
