Frequencies for first 10,000 rows of rx8v2c2 variable in nhamcsed2009 dataset :

   for rx8, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,970       99.70       99.70
        005 |          1        0.01       99.71
        012 |          1        0.01       99.72
        053 |          2        0.02       99.74
        064 |          2        0.02       99.76
        065 |          7        0.07       99.83
        083 |          4        0.04       99.87
        101 |          1        0.01       99.88
        117 |          2        0.02       99.90
        123 |          2        0.02       99.92
        127 |          1        0.01       99.93
        129 |          4        0.04       99.97
        251 |          1        0.01       99.98
        340 |          1        0.01       99.99
        427 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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