**MISSION 273**

# Creating Line Graphs

Learn the basics of using ggplot2 as you visualize changes in life expectancy over time.

#### Objectives

#### Mission Outline

1. Introduction to Data Visualization

2. Introducing the Data

3. Using Plots to Visualize Patterns in Data

4. Data Visualization and the Grammar of Graphics

5. Mapping Variables to Axes

6. Adding Geometric Objects to Visualize Data Points

7. Selecting Data for Visualization

8. Adding Graph Titles and Changing Axis Labels

9. Refining Graph Aesthetics

10. Using Your Line Graph to Understand the Data

11. Takeaways