Save a forest plot to PNG and PDF formats — save_forest

Exports a forestplot object to both PNG and PDF files using grid graphics devices.

Usage

save_forest_plot(
  plot_object,
  filename,
  width = 16/1.8,
  height = 9/1.8,
  res = 300
)

Arguments

plot_object: A forestplot grob object.
filename: Character string specifying the file path without extension.
width: Width of the output figure in inches.
height: Height of the output figure in inches.
res: Resolution in DPI for the PNG output (default = 300).

Details

Because forestplot uses grid graphics (not ggplot2), ggsave() is not compatible. This function opens graphics devices manually and prints the plot object.

Two files are created:

filename.png: High-resolution raster image
filename.pdf: Vector-based PDF

Examples

if (FALSE) { # \dontrun{
book_summary <- summarize_chapter_scores(
  toy_sim_results,
  aggregate_level = "book"
)
forest_plot <- plot_forest_books(book_summary, xlab = "Delta gap")
save_forest_plot(forest_plot, tempfile("nalanda-forest"))
} # }