Frequencies for first 10,000 rows of rx1v1c2 variable in nhamcsed2008 dataset :

   for rx1, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,465       84.65       84.65
        001 |        162        1.62       86.27
        040 |        204        2.04       88.31
        057 |        370        3.70       92.01
        081 |        143        1.43       93.44
        087 |          2        0.02       93.46
        097 |          4        0.04       93.50
        105 |         15        0.15       93.65
        115 |          8        0.08       93.73
        122 |        572        5.72       99.45
        133 |         31        0.31       99.76
        242 |         21        0.21       99.97
        358 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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