Frequencies for first 10,000 rows of rx7v1c2 variable in nhamcsopd2010 dataset :

   for rx7, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,803       98.03       98.03
        001 |         11        0.11       98.14
        020 |          2        0.02       98.16
        040 |         46        0.46       98.62
        057 |         27        0.27       98.89
        081 |         48        0.48       99.37
        097 |          9        0.09       99.46
        105 |          7        0.07       99.53
        113 |          2        0.02       99.55
        115 |          4        0.04       99.59
        122 |         19        0.19       99.78
        133 |          2        0.02       99.80
        218 |         12        0.12       99.92
        358 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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