Frequencies for first 10,000 rows of rx8v1c2 variable in nhamcsopd2010 dataset :

   for rx8, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,858       98.58       98.58
        001 |          8        0.08       98.66
        040 |         25        0.25       98.91
        057 |         26        0.26       99.17
        081 |         29        0.29       99.46
        097 |         10        0.10       99.56
        105 |          8        0.08       99.64
        113 |          1        0.01       99.65
        115 |          1        0.01       99.66
        122 |         15        0.15       99.81
        133 |          3        0.03       99.84
        218 |         13        0.13       99.97
        358 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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