The “labs” Function in R

• Package: ggplot2

• Purpose: To customize plot labels (title, subtitle, axis labels, and captions).

• General Class: Labels

• Required Argument(s): None

• Notable Optional Arguments:

• title: The main title of the plot.

• subtitle: A subtitle providing additional context.

• caption: A caption to be placed below the plot.

• x and y: Labels for the x and y-axis, respectively.

• tag: A tag for the plot that can be used in the rendering process.

• Example:

• # Example usage
  library(ggplot2)
  
  # Create a data frame
  my_data <- data.frame(
  x_values = seq(1, 10),
  y_values = rnorm(10)
  )
  
  # Create a ggplot object with customized labels
  my_plot <- ggplot(data = my_data, aes(x = x_values, y = y_values)) +
  geom_point() +
  labs(title = "Custom Title", subtitle = "Subtitle",
  x = "X-Axis Label", y = "Y-Axis Label",
  caption = "Source: My Data Source")
  
  # Print the plot
  print(my_plot)

• In this example, the labs function from the ggplot2 package is used to customize various labels in a ggplot. The optional arguments allow for setting the main title (title), subtitle (subtitle), axis labels (x and y), and a caption (caption). This function is part of the comprehensive labeling options provided by ggplot2 for enhancing the interpretability of plots.