Previously we created this data frame:

temp <- c(35, 88, 42, 84, 81, 30)
city <- c("Beijing", "Lagos", "Paris", "Rio de Janeiro",
          "San Juan", "Toronto")
city_temps <- data.frame(name = city, temperature = temp)

Exercise

Remake the data frame using the code above, but add a line that converts the temperature from Fahrenheit to Celsius. Make sure your dataframe is stored in city_temps. The conversion formula is:

\[C = \frac{5}{9} (F - 32)\]