Frequencies for first 10,000 rows of rx6v1c1 variable in nhamcsopd2010 dataset :

   for rx6, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,174       81.74       81.74
        001 |         75        0.75       82.49
        020 |         25        0.25       82.74
        028 |          1        0.01       82.75
        040 |        318        3.18       85.93
        057 |        415        4.15       90.08
        081 |         38        0.38       90.46
        087 |        141        1.41       91.87
        097 |         65        0.65       92.52
        105 |         42        0.42       92.94
        113 |         16        0.16       93.10
        115 |        151        1.51       94.61
        122 |        113        1.13       95.74
        133 |         67        0.67       96.41
        218 |         36        0.36       96.77
        242 |         97        0.97       97.74
        254 |         29        0.29       98.03
        331 |          2        0.02       98.05
        358 |        191        1.91       99.96
        365 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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