Frequencies for first 10,000 rows of rx12v1c2 variable in nhamcsed2014 dataset : For RX12, | level 1 of | MULTUM drug | category #2 | (broad | level) | Freq. Percent Cum. ------------+----------------------------------- | 9,981 99.81 99.81 001 | 4 0.04 99.85 040 | 3 0.03 99.88 057 | 3 0.03 99.91 081 | 1 0.01 99.92 097 | 1 0.01 99.93 115 | 1 0.01 99.94 122 | 6 0.06 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 11 Apr 2017