This function creates a map of Africa highlighting countries included in the
MOSAIC framework. The map is saved as a PNG file in the directory specified by PATHS$DOCS_FIGURES.
Examples
if (FALSE) { # \dontrun{
PATHS <- list(DOCS_FIGURES = "path/to/figures")
# Generate and save the MOSAIC country map
plot_mosaic_country_map(PATHS)
} # }
