Indian Rupee symbol on y-axis of ggplot2 graph

How to write rupee symbol on Y axis of ggplot2's bar graph

You can often get things like this to work on the Mac if you try out a different font. For example, this works on my system:

ggplot(data = fakeDF) +
  geom_point(mapping = aes(x = u,
                           y = v)) +
  labs(x = "x_description",
       y = "\u20b9 y_description") +

I don't know enough about this to provide a systematic way to identify fonts that will work with a given Unicode symbol. For example, Times and Verdana fonts are installed on my system, but I couldn't get the Rupee symbol to work with those fonts.

This resource on Unicode and Mac fonts might be helpful.