What are the key aesthetics in ggplot2?

What are the key aesthetics in ggplot2?

In ggplot2, key aesthetics include x and y positions, color, size, shape, and fill. They help define how data is represented.

How do I change the color of points in a scatter plot?

You can change the color of points by using the aes(color = your_variable) function within your ggplot call.

Can I use gradients for colors?

Yes, you can use gradients by specifying a continuous variable in the aes(color = your_variable) and using scale_color_gradient().

What about changing the size of the points?

To change the size of points, use aes(size = your_variable) in your ggplot function.

Are there any default themes I can use?

Yes, ggplot2 comes with several default themes like theme_minimal(), theme_classic(), and theme_dark() that you can apply.