Frequencies for first 10,000 rows of tkaxlef_t variable in vindecode dataset : (axle- type, | front axle) | short | description | Freq. Percent Cum. --------------+----------------------------------- | 5,916 59.16 59.16 Setback Axle | 148 1.48 60.64 Setforward | 11 0.11 60.75 Standard Axle | 2,300 23.00 83.75 Unknown | 1,625 16.25 100.00 --------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Oct 2016