Frequencies for first 10,000 rows of rx8v2c2 variable in nhamcsed2007 dataset :

   for rx8, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,984       99.84       99.84
        005 |          1        0.01       99.85
        015 |          2        0.02       99.87
        064 |          1        0.01       99.88
        065 |          3        0.03       99.91
        083 |          1        0.01       99.92
        109 |          1        0.01       99.93
        117 |          2        0.02       99.95
        120 |          1        0.01       99.96
        124 |          1        0.01       99.97
        125 |          1        0.01       99.98
        136 |          1        0.01       99.99
        251 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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