Frequencies for first 10,000 rows of drg1ing5 variable in nhamcsed2004 dataset :

  ingredient code #5 for medication |
                                 #1 |      Freq.     Percent        Cum.
------------------------------------+-----------------------------------
                 magnesium antacids |          1        0.01        0.01
                         peppermint |          1        0.01        0.02
                         sodium ion |         24        0.24        0.26
                           thiamine |          1        0.01        0.27
                          vitamin a |         17        0.17        0.44
                 potassium chloride |          3        0.03        0.47
                   atropine sulfate |          1        0.01        0.48
                hyoscyamine sulfate |          3        0.03        0.51
                   neomycin sulfate |          1        0.01        0.52
                           vanadium |          1        0.01        0.53
                                  . |      9,947       99.47      100.00
------------------------------------+-----------------------------------
                              Total |     10,000      100.00

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