Frequencies for first 10,000 rows of rx7v2c2 variable in nhamcsopd2007 dataset :

   for rx7, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,885       98.85       98.85
        005 |          3        0.03       98.88
        012 |          2        0.02       98.90
        015 |          4        0.04       98.94
        018 |          1        0.01       98.95
        019 |          2        0.02       98.97
        053 |          3        0.03       99.00
        064 |         11        0.11       99.11
        065 |         10        0.10       99.21
        083 |         41        0.41       99.62
        100 |          1        0.01       99.63
        101 |          2        0.02       99.65
        109 |          5        0.05       99.70
        117 |          6        0.06       99.76
        123 |          5        0.05       99.81
        129 |          1        0.01       99.82
        136 |          1        0.01       99.83
        151 |          2        0.02       99.85
        192 |          2        0.02       99.87
        251 |          1        0.01       99.88
        257 |          3        0.03       99.91
        289 |          1        0.01       99.92
        320 |          5        0.05       99.97
        340 |          2        0.02       99.99
        378 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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