Frequencies for first 10,000 rows of rx6v1c1 variable in nhamcsopd2007 dataset :

   for rx6, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,521       85.21       85.21
        001 |         64        0.64       85.85
        020 |         15        0.15       86.00
        028 |          4        0.04       86.04
        040 |        275        2.75       88.79
        057 |        299        2.99       91.78
        081 |         35        0.35       92.13
        087 |        120        1.20       93.33
        097 |         57        0.57       93.90
        105 |         32        0.32       94.22
        115 |        130        1.30       95.52
        122 |         84        0.84       96.36
        133 |         58        0.58       96.94
        218 |         30        0.30       97.24
        242 |         84        0.84       98.08
        254 |         23        0.23       98.31
        358 |        168        1.68       99.99
        365 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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