Frequencies for first 10,000 rows of drg1ing3 variable in nhamcsopd1992 dataset : Ingredient | code #3 for | medication | #1 | Freq. Percent Cum. ------------+----------------------------------- | 9,872 98.72 98.72 50637 | 3 0.03 98.75 50745 | 10 0.10 98.85 52190 | 1 0.01 98.86 52908 | 2 0.02 98.88 53175 | 2 0.02 98.90 53780 | 1 0.01 98.91 53895 | 1 0.01 98.92 54003 | 1 0.01 98.93 54330 | 2 0.02 98.95 54350 | 1 0.01 98.96 54395 | 4 0.04 99.00 54465 | 18 0.18 99.18 54595 | 13 0.13 99.31 54713 | 1 0.01 99.32 54755 | 3 0.03 99.35 54995 | 2 0.02 99.37 55130 | 40 0.40 99.77 55240 | 13 0.13 99.90 56193 | 1 0.01 99.91 56265 | 1 0.01 99.92 57028 | 8 0.08 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016