Frequencies for first 10,000 rows of rx1v1c1 variable in nhamcsopd2010 dataset :

   for rx1, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,874       28.74       28.74
        001 |        754        7.54       36.28
        020 |        133        1.33       37.61
        028 |         14        0.14       37.75
        040 |        716        7.16       44.91
        057 |      1,703       17.03       61.94
        081 |        168        1.68       63.62
        087 |        317        3.17       66.79
        097 |        355        3.55       70.34
        105 |        191        1.91       72.25
        113 |         35        0.35       72.60
        115 |        526        5.26       77.86
        122 |        375        3.75       81.61
        133 |        452        4.52       86.13
        218 |         36        0.36       86.49
        242 |        466        4.66       91.15
        254 |        385        3.85       95.00
        331 |          3        0.03       95.03
        358 |        469        4.69       99.72
        365 |         10        0.10       99.82
        899 |         18        0.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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