Frequencies for first 10,000 rows of rx5v1c1 variable in nhamcsopd2008 dataset :

   for rx5, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,961       79.61       79.61
        001 |         75        0.75       80.36
        020 |         13        0.13       80.49
        028 |          1        0.01       80.50
        040 |        343        3.43       83.93
        057 |        421        4.21       88.14
        081 |         32        0.32       88.46
        087 |        169        1.69       90.15
        097 |        102        1.02       91.17
        105 |         61        0.61       91.78
        115 |        157        1.57       93.35
        122 |        147        1.47       94.82
        133 |         86        0.86       95.68
        218 |         20        0.20       95.88
        242 |         93        0.93       96.81
        254 |         72        0.72       97.53
        331 |          5        0.05       97.58
        358 |        233        2.33       99.91
        365 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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