Frequencies for first 10,000 rows of rx1v1c1 variable in nhamcsopd2008 dataset :

   for rx1, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,901       29.01       29.01
        001 |        722        7.22       36.23
        020 |        162        1.62       37.85
        028 |         12        0.12       37.97
        040 |        710        7.10       45.07
        057 |      1,854       18.54       63.61
        081 |        109        1.09       64.70
        087 |        241        2.41       67.11
        097 |        377        3.77       70.88
        105 |        248        2.48       73.36
        115 |        528        5.28       78.64
        122 |        501        5.01       83.65
        133 |        395        3.95       87.60
        218 |         22        0.22       87.82
        242 |        428        4.28       92.10
        254 |        348        3.48       95.58
        331 |          4        0.04       95.62
        358 |        408        4.08       99.70
        365 |         27        0.27       99.97
        899 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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