Frequencies for first 10,000 rows of drg1ing5 variable in nhamcsopd2005 dataset :

ingredient code #5 for medication #1 |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                          sodium ion |          3        0.03        0.03
                             sucrose |          5        0.05        0.08
                            thiamine |          2        0.02        0.10
                           vitamin a |        270        2.70        2.80
                           vitamin c |          1        0.01        2.81
                           vitamin e |          1        0.01        2.82
                                aloe |         10        0.10        2.92
                  potassium chloride |          2        0.02        2.94
                             protein |          1        0.01        2.95
                    neomycin sulfate |          3        0.03        2.98
                             tapioca |          1        0.01        2.99
                       cod liver oil |          3        0.03        3.02
                           pertactin |         34        0.34        3.36
                     calcium sulfate |          4        0.04        3.40
                       linoleic acid |          2        0.02        3.42
                  miconazole nitrate |          1        0.01        3.43
                                   . |      9,657       96.57      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016