Frequencies for first 10,000 rows of rx8v1c2 variable in nhamcsopd2008 dataset :

   for rx8, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,899       98.99       98.99
        001 |          3        0.03       99.02
        040 |         29        0.29       99.31
        057 |         11        0.11       99.42
        081 |         24        0.24       99.66
        097 |          5        0.05       99.71
        105 |          4        0.04       99.75
        115 |          3        0.03       99.78
        122 |          9        0.09       99.87
        133 |          2        0.02       99.89
        218 |          2        0.02       99.91
        242 |          1        0.01       99.92
        254 |          2        0.02       99.94
        358 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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