Frequencies for first 10,000 rows of rx3v1c2 variable in nhamcsopd2010 dataset :

   for rx3, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,485       94.85       94.85
        001 |         27        0.27       95.12
        040 |         80        0.80       95.92
        057 |         75        0.75       96.67
        081 |        119        1.19       97.86
        097 |         21        0.21       98.07
        105 |         29        0.29       98.36
        113 |          1        0.01       98.37
        115 |         13        0.13       98.50
        122 |         79        0.79       99.29
        133 |         16        0.16       99.45
        218 |         14        0.14       99.59
        242 |          7        0.07       99.66
        254 |         10        0.10       99.76
        358 |         24        0.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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