September 2018
Beginner to intermediate
140 pages
2h 52m
English
Content preview from Applied Data Visualization with R and ggplot2
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Creating a Two-Dimensional Bar Chart
In this section, we'll create a two-dimensional bar chart for the total sales of a company in different months.
Let's begin by following these steps:
- Load the data. Add the line require (Lock5Data) into your code. You should have installed this package previously.
- Review the data with the glimpse(RetailSales) command.
- Plot a graph of Sales versus Month.
Here, Month is a categorical variable, while Sales is a continuous variable of the type <dbl>.
- Use ggplot + geom_bar(..) to plot this data, as follows:
ggplot(RetailSales,aes(x=Month,y=Sales)) + geom_bar(stat="identity")
A screenshot of the expected outcome is as follows:
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