Frequencies for first 10,000 rows of rx4cat2 variable in nhamcsed2011 dataset : For RX4, | MULTUM drug | category #2 | - most | detailed | level (can | be either | Level 1,2 | Freq. Percent Cum. ------------+----------------------------------- | 9,715 97.15 97.15 012 | 12 0.12 97.27 015 | 12 0.12 97.39 053 | 12 0.12 97.51 054 | 1 0.01 97.52 095 | 2 0.02 97.54 106 | 3 0.03 97.57 117 | 3 0.03 97.60 120 | 4 0.04 97.64 123 | 39 0.39 98.03 124 | 2 0.02 98.05 127 | 1 0.01 98.06 129 | 56 0.56 98.62 146 | 1 0.01 98.63 174 | 1 0.01 98.64 180 | 4 0.04 98.68 196 | 16 0.16 98.84 198 | 29 0.29 99.13 203 | 16 0.16 99.29 210 | 5 0.05 99.34 211 | 25 0.25 99.59 239 | 9 0.09 99.68 248 | 1 0.01 99.69 268 | 6 0.06 99.75 289 | 1 0.01 99.76 297 | 1 0.01 99.77 320 | 1 0.01 99.78 340 | 1 0.01 99.79 385 | 11 0.11 99.90 386 | 1 0.01 99.91 388 | 5 0.05 99.96 389 | 1 0.01 99.97 407 | 1 0.01 99.98 433 | 1 0.01 99.99 450 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016