Frequencies for first 10,000 rows of rx4v1c2 variable in nhamcsopd2007 dataset :

   for rx4, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,700       97.00       97.00
        001 |         21        0.21       97.21
        040 |         15        0.15       97.36
        057 |         59        0.59       97.95
        081 |         94        0.94       98.89
        087 |          1        0.01       98.90
        097 |         10        0.10       99.00
        105 |         34        0.34       99.34
        115 |         13        0.13       99.47
        122 |         38        0.38       99.85
        133 |          7        0.07       99.92
        242 |          2        0.02       99.94
        358 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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