Frequencies for first 10,000 rows of rx4v1c2 variable in nhamcsopd2011 dataset :

   For RX4, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,652       96.52       96.52
        001 |         14        0.14       96.66
        020 |          1        0.01       96.67
        040 |         55        0.55       97.22
        057 |         50        0.50       97.72
        081 |         92        0.92       98.64
        097 |         23        0.23       98.87
        105 |         18        0.18       99.05
        115 |         13        0.13       99.18
        122 |         38        0.38       99.56
        133 |         11        0.11       99.67
        218 |         12        0.12       99.79
        242 |          9        0.09       99.88
        254 |          4        0.04       99.92
        358 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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