Frequencies for first 10,000 rows of rx2v2c2 variable in nhamcsopd2009 dataset :

   for rx2, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,433       94.33       94.33
        005 |         16        0.16       94.49
        012 |         17        0.17       94.66
        015 |         25        0.25       94.91
        019 |          4        0.04       94.95
        046 |         82        0.82       95.77
        053 |          3        0.03       95.80
        064 |         41        0.41       96.21
        065 |         54        0.54       96.75
        066 |          1        0.01       96.76
        083 |         81        0.81       97.57
        098 |         21        0.21       97.78
        101 |         25        0.25       98.03
        106 |          1        0.01       98.04
        117 |          7        0.07       98.11
        118 |          1        0.01       98.12
        120 |          9        0.09       98.21
        123 |         32        0.32       98.53
        124 |         16        0.16       98.69
        125 |          5        0.05       98.74
        127 |          3        0.03       98.77
        129 |          9        0.09       98.86
        130 |          4        0.04       98.90
        132 |          2        0.02       98.92
        136 |          8        0.08       99.00
        146 |         11        0.11       99.11
        151 |          6        0.06       99.17
        192 |         11        0.11       99.28
        249 |          2        0.02       99.30
        253 |          1        0.01       99.31
        257 |          3        0.03       99.34
        289 |          6        0.06       99.40
        303 |          4        0.04       99.44
        320 |         33        0.33       99.77
        340 |          7        0.07       99.84
        363 |          3        0.03       99.87
        377 |          1        0.01       99.88
        378 |          1        0.01       99.89
        401 |          2        0.02       99.91
        417 |          3        0.03       99.94
        420 |          1        0.01       99.95
        423 |          3        0.03       99.98
        427 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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