Frequencies for first 10,000 rows of drugres2 variable in person dataset : DRUG TEST | RESULTS-2 | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,318 93.18 93.18 1 | 26 0.26 93.44 136 | 1 0.01 93.45 165 | 1 0.01 93.46 177 | 5 0.05 93.51 187 | 6 0.06 93.57 189 | 3 0.03 93.60 208 | 1 0.01 93.61 295 | 1 0.01 93.62 300 | 1 0.01 93.63 304 | 1 0.01 93.64 321 | 8 0.08 93.72 343 | 1 0.01 93.73 351 | 4 0.04 93.77 358 | 1 0.01 93.78 367 | 1 0.01 93.79 376 | 2 0.02 93.81 401 | 6 0.06 93.87 402 | 7 0.07 93.94 405 | 1 0.01 93.95 407 | 34 0.34 94.29 410 | 7 0.07 94.36 417 | 81 0.81 95.17 423 | 1 0.01 95.18 513 | 1 0.01 95.19 515 | 2 0.02 95.21 522 | 1 0.01 95.22 600 | 2 0.02 95.24 603 | 7 0.07 95.31 604 | 1 0.01 95.32 605 | 2 0.02 95.34 606 | 10 0.10 95.44 695 | 18 0.18 95.62 996 | 48 0.48 96.10 997 | 66 0.66 96.76 998 | 1 0.01 96.77 999 | 323 3.23 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016