A data frame is a list of vectors of equal length.

Input:

source_code/appendix_b_r/example06_data_frame.r
temperatures = data.frame(
  fahrenheit = c(5,14,23,32,41,50),
  celsius = c(-15,-10,-5,0,5,10)
)
print(temperatures)

Output:

$ Rscript example06_data_frame.r 
  fahrenheit celsius
1          5     -15
2         14     -10
3         23      -5
4         32       0
5         41       5
6         50      10