Frequencies for first 10,000 rows of rx7v2c2 variable in nhamcsed2007 dataset :

   for rx7, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,955       99.55       99.55
        005 |          1        0.01       99.56
        053 |          3        0.03       99.59
        064 |          3        0.03       99.62
        065 |          8        0.08       99.70
        083 |          9        0.09       99.79
        109 |          1        0.01       99.80
        117 |          3        0.03       99.83
        123 |          4        0.04       99.87
        125 |          1        0.01       99.88
        129 |          6        0.06       99.94
        151 |          2        0.02       99.96
        251 |          2        0.02       99.98
        320 |          1        0.01       99.99
        340 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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