Frequencies for first 10,000 rows of rx2v2c2 variable in nhamcsopd2007 dataset :

   for rx2, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,513       95.13       95.13
        005 |         23        0.23       95.36
        012 |         10        0.10       95.46
        015 |         23        0.23       95.69
        019 |          4        0.04       95.73
        053 |          9        0.09       95.82
        064 |         43        0.43       96.25
        065 |         59        0.59       96.84
        066 |          6        0.06       96.90
        083 |        107        1.07       97.97
        098 |         21        0.21       98.18
        100 |          3        0.03       98.21
        101 |         12        0.12       98.33
        109 |         25        0.25       98.58
        113 |          1        0.01       98.59
        117 |          7        0.07       98.66
        120 |          1        0.01       98.67
        123 |         25        0.25       98.92
        124 |         12        0.12       99.04
        125 |          2        0.02       99.06
        127 |          4        0.04       99.10
        129 |         12        0.12       99.22
        136 |          5        0.05       99.27
        151 |          2        0.02       99.29
        192 |          6        0.06       99.35
        249 |          3        0.03       99.38
        251 |          1        0.01       99.39
        257 |          2        0.02       99.41
        277 |          1        0.01       99.42
        289 |          4        0.04       99.46
        303 |          6        0.06       99.52
        320 |         38        0.38       99.90
        323 |          1        0.01       99.91
        340 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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