Frequencies for first 10,000 rows of rx14v3c4 variable in nhamcsed2014 dataset : For RX14, | level 3 of | MULTUM drug | category #4 | (detailed | level) | Freq. Percent Cum. ------------+----------------------------------- | 9,999 99.99 99.99 205 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 11 Apr 2017