Frequencies for first 10,000 rows of rx3v1c2 variable in nhamcsopd2007 dataset :

   for rx3, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,633       96.33       96.33
        001 |         44        0.44       96.77
        040 |         14        0.14       96.91
        057 |         67        0.67       97.58
        081 |         96        0.96       98.54
        087 |          3        0.03       98.57
        097 |         18        0.18       98.75
        105 |         49        0.49       99.24
        115 |         13        0.13       99.37
        122 |         40        0.40       99.77
        133 |         12        0.12       99.89
        218 |          1        0.01       99.90
        242 |          2        0.02       99.92
        358 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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