R ggplot2 (Data Visualization)

What is ggplot2?

ggplot2 is a package used to create powerful data visualizations.

It is based on layering components to build plots.

Loading ggplot2

Basic Structure

aes() – Aesthetics

Maps data variables to visual properties.

geom_point()

geom_line()

geom_bar()

geom_histogram()

Adding Color

Titles and Labels

Full Example

Why ggplot2 is Important

• Visualize data
• Find patterns
• Communicate insights
• Industry standard

Common Mistakes

• Forgetting aes()
• Using wrong geom
• Not loading ggplot2
• Swapping x and y

Practice

Create a scatter plot with a title and axis labels.

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