Frequencies for first 10,000 rows of alignmnt variable in accident dataset : Roadway | Alignment | Freq. Percent Cum. ------------+----------------------------------- 1 | 7,253 72.53 72.53 2 | 2,697 26.97 99.50 9 | 50 0.50 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016