Frequencies for first 10,000 rows of dose_unit variable in drug2015q2 dataset : Unit of | drug dose | Freq. Percent Cum. ------------+----------------------------------- | 4,715 47.15 47.15 DF | 192 1.92 49.07 G | 94 0.94 50.01 GTT | 9 0.09 50.10 IU | 24 0.24 50.34 MEQ | 21 0.21 50.55 MG | 4,302 43.02 93.57 MG/KG | 54 0.54 94.11 MG/M**2 | 137 1.37 95.48 ML | 111 1.11 96.59 PCT | 13 0.13 96.72 UG | 325 3.25 99.97 UG/KG | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 19 Apr 2017