Frequencies for first 10,000 rows of drugres2 variable in person dataset : DRUG TEST | RESULTS-2 | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,376 93.76 93.76 1 | 30 0.30 94.06 151 | 1 0.01 94.07 155 | 8 0.08 94.15 157 | 7 0.07 94.22 167 | 5 0.05 94.27 177 | 5 0.05 94.32 187 | 12 0.12 94.44 188 | 1 0.01 94.45 189 | 9 0.09 94.54 205 | 1 0.01 94.55 208 | 7 0.07 94.62 234 | 1 0.01 94.63 295 | 1 0.01 94.64 300 | 4 0.04 94.68 303 | 2 0.02 94.70 304 | 7 0.07 94.77 308 | 1 0.01 94.78 316 | 1 0.01 94.79 321 | 7 0.07 94.86 337 | 1 0.01 94.87 343 | 5 0.05 94.92 348 | 1 0.01 94.93 351 | 12 0.12 95.05 352 | 1 0.01 95.06 355 | 1 0.01 95.07 367 | 3 0.03 95.10 387 | 1 0.01 95.11 401 | 10 0.10 95.21 402 | 6 0.06 95.27 407 | 33 0.33 95.60 410 | 4 0.04 95.64 417 | 105 1.05 96.69 423 | 1 0.01 96.70 513 | 2 0.02 96.72 515 | 3 0.03 96.75 600 | 1 0.01 96.76 603 | 22 0.22 96.98 605 | 5 0.05 97.03 606 | 69 0.69 97.72 695 | 50 0.50 98.22 996 | 61 0.61 98.83 999 | 117 1.17 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016