Frequencies for first 10,000 rows of drug3cl2 variable in nhamcsopd2002 dataset : drug class | #2 for | medication | #3 | Freq. Percent Cum. ------------+----------------------------------- | 9,852 98.52 98.52 0507 | 10 0.10 98.62 0510 | 2 0.02 98.64 0512 | 10 0.10 98.74 0513 | 6 0.06 98.80 0874 | 1 0.01 98.81 0875 | 3 0.03 98.84 0913 | 1 0.01 98.85 0916 | 1 0.01 98.86 1040 | 1 0.01 98.87 1200 | 1 0.01 98.88 1265 | 7 0.07 98.95 1274 | 1 0.01 98.96 1275 | 5 0.05 99.01 1373 | 4 0.04 99.05 1567 | 1 0.01 99.06 1671 | 6 0.06 99.12 1720 | 1 0.01 99.13 1722 | 1 0.01 99.14 1724 | 44 0.44 99.58 1727 | 7 0.07 99.65 1728 | 22 0.22 99.87 1943 | 3 0.03 99.90 1944 | 6 0.06 99.96 1947 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016