If you’re working with an R script that contains multiple user-defined functions and you’d like to see how they interact, you might find my CRAN package funcMapper useful.

It analyses a given R script and produces an interactive visNetwork graph showing the relationships between the functions defined in that script.

The function's parameters are shown below:

funcMapper(script_path, output_name, output_path, source = FALSE, cleanup_temp_file = TRUE)

For example:

funcMapper("main_script", "map_of_main_script", "~/test")

This generates an interactive map (map_of_main_script.html) illustrating how the functions in main_script.R call each other.

CRAN link: https://cran.r-project.org/web/packages/funcMapper/index.html

Github link: https://github.com/antoniof1704/funcMapper