Frequencies for first 10,000 rows of drg3ing3 variable in nhamcsed2004 dataset :

  ingredient code #3 for medication |
                                 #3 |      Freq.     Percent        Cum.
------------------------------------+-----------------------------------
                           caffeine |          7        0.07        0.07
                   chlorpheniramine |          2        0.02        0.09
                           corn oil |          1        0.01        0.10
                           glyceryl |          1        0.01        0.11
                          lidocaine |          1        0.01        0.12
                 magnesium antacids |          4        0.04        0.16
                         petrolatum |          1        0.01        0.17
                         riboflavin |          5        0.05        0.22
                    scopolamine hbr |          5        0.05        0.27
                        simethicone |          2        0.02        0.29
                     sodium citrate |          1        0.01        0.30
                             starch |          1        0.01        0.31
                           thiamine |          2        0.02        0.33
                magnesium hydroxide |          1        0.01        0.34
                   atropine sulfate |          7        0.07        0.41
                pseudoephedrine hcl |          2        0.02        0.43
               dextromethorphan hbr |          1        0.01        0.44
                   neomycin sulfate |          5        0.05        0.49
              carbinoxamine maleate |          2        0.02        0.51
            oxycodone terephthalate |          1        0.01        0.52
                                  . |      9,948       99.48      100.00
------------------------------------+-----------------------------------
                              Total |     10,000      100.00

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