Frequencies for first 10,000 rows of rx8v3c2 variable in nhamcsopd2007 dataset :

   for rx8, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,951       99.51       99.51
        174 |          2        0.02       99.53
        196 |          2        0.02       99.55
        198 |          6        0.06       99.61
        203 |          6        0.06       99.67
        210 |          4        0.04       99.71
        211 |         23        0.23       99.94
        238 |          1        0.01       99.95
        239 |          1        0.01       99.96
        276 |          1        0.01       99.97
        301 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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