Frequencies for first 10,000 rows of rx1v1c1 variable in nhamcsed2007 dataset :

   for rx1, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,234       22.34       22.34
        001 |      1,351       13.51       35.85
        020 |          2        0.02       35.87
        040 |        404        4.04       39.91
        057 |      3,893       38.93       78.84
        081 |         56        0.56       79.40
        087 |        318        3.18       82.58
        097 |        218        2.18       84.76
        105 |        101        1.01       85.77
        115 |        424        4.24       90.01
        122 |        414        4.14       94.15
        133 |        220        2.20       96.35
        153 |          2        0.02       96.37
        218 |          2        0.02       96.39
        242 |        106        1.06       97.45
        254 |        163        1.63       99.08
        331 |         12        0.12       99.20
        358 |         55        0.55       99.75
        365 |         24        0.24       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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