Frequencies for first 10,000 rows of drugres2 variable in person dataset : drug test- | result (2) | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,120 91.20 91.20 124 | 1 0.01 91.21 136 | 2 0.02 91.23 147 | 1 0.01 91.24 155 | 21 0.21 91.45 157 | 13 0.13 91.58 165 | 1 0.01 91.59 167 | 5 0.05 91.64 177 | 18 0.18 91.82 178 | 1 0.01 91.83 187 | 10 0.10 91.93 188 | 1 0.01 91.94 189 | 21 0.21 92.15 232 | 1 0.01 92.16 300 | 17 0.17 92.33 304 | 13 0.13 92.46 308 | 2 0.02 92.48 313 | 1 0.01 92.49 316 | 9 0.09 92.58 321 | 11 0.11 92.69 337 | 5 0.05 92.74 341 | 1 0.01 92.75 343 | 2 0.02 92.77 348 | 9 0.09 92.86 351 | 21 0.21 93.07 352 | 1 0.01 93.08 358 | 1 0.01 93.09 376 | 5 0.05 93.14 387 | 4 0.04 93.18 401 | 34 0.34 93.52 402 | 29 0.29 93.81 405 | 1 0.01 93.82 407 | 43 0.43 94.25 410 | 3 0.03 94.28 417 | 198 1.98 96.26 513 | 1 0.01 96.27 600 | 47 0.47 96.74 603 | 16 0.16 96.90 605 | 164 1.64 98.54 695 | 81 0.81 99.35 996 | 65 0.65 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Oct 2016