How can I create advanced plots using ggplot2 in R?

How can I create advanced plots using ggplot2 in R?

You can create advanced plots in ggplot2 by using layers, themes, and custom scales. What specific type of plot are you interested in?

I'm interested in creating a heatmap.

To create a heatmap, you can use the geom_tile() function along with scale_fill_gradient(). Do you have a dataset in mind?

Yes, I have a dataset with temperature readings. How do I structure it?

Your dataset should be in a long format with columns for 'x', 'y', and 'value'. You can use the pivot_longer() function from the tidyr package to reshape it if needed.

Got it! Can you show me a sample code for that?

Sure! Here's a basic example:

library(ggplot2)

# Sample data
data <- data.frame(
  x = rep(1:10, each = 10),
  y = rep(1:10, times = 10),
  value = rnorm(100)
)

# Create heatmap
ggplot(data, aes(x = x, y = y, fill = value)) +
  geom_tile() +
  scale_fill_gradient(low = 'blue', high = 'red') +
  theme_minimal()

This will create a heatmap with your temperature readings!