How do I add the names of the graphs inside the plot in R?-CodePudding

enter image description here I built the graph but I try to add the names of the graphs and it does not work. It should look like in the picture, I only have the graphs without the names

I would happy if anyone knows which function should be used

CodePudding user response：

The geomtextpath package looks as if it is ideal for this use case. Very nice it is too.

library(ggplot2)
library(geomtextpath)


ggplot(data.frame(x = 0))  
  geom_textpath(stat = "function", fun = ~ 2.5 * .x,
                label = "Holding Cost",
                vjust = 1.1, colour = "green", hjust = 0.95, size = 6)  
  geom_textpath(stat = "function", fun = ~ 500 / .x ^0.5,
                label = "Set Up Cost",
                vjust = -0.1, colour = "blue", hjust = 0.95, size = 6)  
  geom_textpath(stat = "function", fun = ~ 500 / .x ^0.5   2.5 * .x,
                label = "Total Cost",
                vjust = -0.1, colour = "red", hjust = 0.95, size = 6)  
  xlim(1, 100) 
  theme_bw()

^{Created on 2022-03-24 by the reprex package (v2.0.1)}