Frequencies for first 10,000 rows of nummed variable in nhamcsopd2001 dataset : number of | medications | Freq. Percent Cum. ------------+----------------------------------- 0 | 4,156 41.56 41.56 1 | 2,309 23.09 64.65 2 | 1,313 13.13 77.78 3 | 723 7.23 85.01 4 | 485 4.85 89.86 5 | 314 3.14 93.00 6 | 700 7.00 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016