September 2018
Beginner to intermediate
140 pages
2h 52m
English
Content preview from Applied Data Visualization with R and ggplot2
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Activity: Improving the Default Visualization
Steps for Completion:
- Use the basic ggplot commands to create two of the plots from Activity B (Topic and VisitedResources).
- Use the Grammar of Graphics to improve your graphics by layering upon the base graphic. The graph should follow these guidelines:
- Histograms should be rebinned.
- Change the fill colors of one- and two-dimensional objects. The line colors should be black.
- Add a title to the graph.
- Apply the appropriate font sizes and colors to the x- and y-axes.
Outcome:
The complete code is as follows:
p1 <- ggplot(df_edu,aes(x=Topic))p2 <- ggplot(df_edu,aes(x=VisitedResources))p1 + geom_bar(color=1,fill=3) + ylab("Count")+ theme(axis.text.y=element_text(size=10), axis.text.x=element_text(size ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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