How can I combine multiple ggplot plots into one?

How can I combine multiple ggplot plots into one?

You can use the gridExtra or patchwork packages in R to combine multiple ggplot plots.

Can you show me an example using gridExtra?

Sure! Here's a simple example:

library(ggplot2)
library(gridExtra)

p1 <- ggplot(mtcars, aes(x=mpg, y=wt)) + geom_point()
p2 <- ggplot(mtcars, aes(x=hp, y=drat)) + geom_point()

grid.arrange(p1, p2, ncol=2)

What about using patchwork instead?

With patchwork, you can combine plots like this:

library(ggplot2)
library(patchwork)

p1 + p2

This will place the plots side by side by default.

Are there options to customize the layout?

Yes! You can customize the layout using functions like plot_layout() in patchwork or by specifying nrow and ncol in gridExtra.