Frequencies for first 10,000 rows of rx4v2c2 variable in nhamcsopd2007 dataset :

   for rx4, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,700       97.00       97.00
        005 |          7        0.07       97.07
        012 |          3        0.03       97.10
        015 |         11        0.11       97.21
        019 |          2        0.02       97.23
        053 |          5        0.05       97.28
        064 |         23        0.23       97.51
        065 |         34        0.34       97.85
        066 |          2        0.02       97.87
        083 |         94        0.94       98.81
        098 |          4        0.04       98.85
        100 |          1        0.01       98.86
        101 |          5        0.05       98.91
        107 |          1        0.01       98.92
        109 |         14        0.14       99.06
        113 |          1        0.01       99.07
        117 |         13        0.13       99.20
        123 |         27        0.27       99.47
        124 |          6        0.06       99.53
        125 |          2        0.02       99.55
        129 |          2        0.02       99.57
        130 |          1        0.01       99.58
        136 |          1        0.01       99.59
        146 |          5        0.05       99.64
        151 |          1        0.01       99.65
        192 |          5        0.05       99.70
        249 |          2        0.02       99.72
        277 |          1        0.01       99.73
        289 |          4        0.04       99.77
        303 |          4        0.04       99.81
        320 |         13        0.13       99.94
        340 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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