Frequencies for first 10,000 rows of rx6v1c1 variable in nhamcsopd2009 dataset :

   for rx6, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,323       83.23       83.23
        001 |         69        0.69       83.92
        020 |         25        0.25       84.17
        028 |          5        0.05       84.22
        040 |        304        3.04       87.26
        057 |        367        3.67       90.93
        081 |         42        0.42       91.35
        087 |        144        1.44       92.79
        097 |         49        0.49       93.28
        105 |         25        0.25       93.53
        113 |         10        0.10       93.63
        115 |        138        1.38       95.01
        122 |         99        0.99       96.00
        133 |         74        0.74       96.74
        218 |         31        0.31       97.05
        242 |         71        0.71       97.76
        254 |         28        0.28       98.04
        358 |        195        1.95       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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