Frequencies for first 10,000 rows of rx6v2c2 variable in nhamcsed2007 dataset :

   for rx6, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,921       99.21       99.21
        005 |          1        0.01       99.22
        012 |          2        0.02       99.24
        015 |          4        0.04       99.28
        053 |          9        0.09       99.37
        064 |          2        0.02       99.39
        065 |         18        0.18       99.57
        083 |          7        0.07       99.64
        100 |          1        0.01       99.65
        109 |          6        0.06       99.71
        117 |          4        0.04       99.75
        123 |         10        0.10       99.85
        124 |          1        0.01       99.86
        129 |          8        0.08       99.94
        151 |          3        0.03       99.97
        251 |          1        0.01       99.98
        289 |          1        0.01       99.99
        320 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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