Frequencies for first 10,000 rows of drg1ing3 variable in nhamcsopd1999 dataset : ingredient | code #3 for | medication | #1 | Freq. Percent Cum. ------------+----------------------------------- | 9,689 96.89 96.89 50637 | 3 0.03 96.92 50745 | 8 0.08 97.00 52190 | 1 0.01 97.01 52450 | 1 0.01 97.02 52885 | 1 0.01 97.03 52908 | 2 0.02 97.05 53175 | 6 0.06 97.11 53650 | 1 0.01 97.12 53720 | 1 0.01 97.13 54325 | 5 0.05 97.18 54328 | 42 0.42 97.60 54330 | 2 0.02 97.62 54395 | 1 0.01 97.63 54465 | 11 0.11 97.74 54595 | 13 0.13 97.87 54755 | 2 0.02 97.89 54995 | 5 0.05 97.94 55105 | 144 1.44 99.38 55130 | 30 0.30 99.68 55240 | 2 0.02 99.70 55715 | 18 0.18 99.88 55755 | 2 0.02 99.90 56445 | 5 0.05 99.95 59629 | 1 0.01 99.96 59803 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016