Frequencies for first 10,000 rows of drugres2 variable in person dataset : drug test- | result (2) | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,334 93.34 93.34 117 | 1 0.01 93.35 128 | 1 0.01 93.36 151 | 2 0.02 93.38 155 | 13 0.13 93.51 157 | 2 0.02 93.53 167 | 9 0.09 93.62 177 | 22 0.22 93.84 178 | 1 0.01 93.85 184 | 1 0.01 93.86 187 | 11 0.11 93.97 188 | 2 0.02 93.99 189 | 22 0.22 94.21 250 | 1 0.01 94.22 300 | 16 0.16 94.38 303 | 1 0.01 94.39 304 | 15 0.15 94.54 308 | 1 0.01 94.55 316 | 1 0.01 94.56 317 | 1 0.01 94.57 321 | 13 0.13 94.70 337 | 4 0.04 94.74 343 | 4 0.04 94.78 348 | 11 0.11 94.89 351 | 22 0.22 95.11 352 | 2 0.02 95.13 358 | 3 0.03 95.16 367 | 1 0.01 95.17 376 | 2 0.02 95.19 387 | 1 0.01 95.20 401 | 25 0.25 95.45 402 | 27 0.27 95.72 407 | 34 0.34 96.06 410 | 3 0.03 96.09 417 | 139 1.39 97.48 503 | 1 0.01 97.49 600 | 17 0.17 97.66 603 | 7 0.07 97.73 605 | 82 0.82 98.55 695 | 62 0.62 99.17 795 | 1 0.01 99.18 996 | 82 0.82 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Oct 2016