Frequencies for first 10,000 rows of rx1v3c2 variable in nhamcsed2007 dataset :

   for rx1, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,412       94.12       94.12
        102 |          1        0.01       94.13
        180 |         13        0.13       94.26
        196 |        114        1.14       95.40
        198 |        169        1.69       97.09
        203 |         39        0.39       97.48
        210 |         39        0.39       97.87
        211 |        146        1.46       99.33
        235 |          1        0.01       99.34
        239 |         29        0.29       99.63
        268 |         16        0.16       99.79
        292 |          9        0.09       99.88
        297 |          1        0.01       99.89
        301 |          5        0.05       99.94
        374 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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