How to change facet labels?

Question

I have used the following ggplot command:

ggplot(survey, aes(x = age)) + stat_bin(aes(n = nrow(h3), y = ..count.. / n), binwidth = 10)
  + scale         


        

Answer 1

The EASIEST way to change WITHOUT modifying the underlying data is:

1. Create an object using the as_labeller function adding the back tick mark for each of the default values:

   hum.names <- as_labeller(c(50 = "RH% 50", 60 = "RH% 60",70 = "RH% 70", 80 = "RH% 80",90 = "RH% 90", 100 = "RH% 100")) #Necesarry to put RH% into the facet labels

2. We add into the GGplot:

   ggplot(dataframe, aes(x=Temperature.C,y=fit))+geom_line()+ facet_wrap(~Humidity.RH., nrow=2,labeller=hum.names)