Frequencies for first 10,000 rows of rx8v1c1 variable in nhamcsopd2009 dataset :

   for rx8, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,044       90.44       90.44
        001 |         25        0.25       90.69
        020 |         17        0.17       90.86
        028 |          7        0.07       90.93
        040 |        145        1.45       92.38
        057 |        236        2.36       94.74
        081 |         18        0.18       94.92
        087 |         67        0.67       95.59
        097 |         34        0.34       95.93
        105 |         20        0.20       96.13
        113 |          3        0.03       96.16
        115 |         78        0.78       96.94
        122 |         65        0.65       97.59
        133 |         51        0.51       98.10
        218 |         21        0.21       98.31
        242 |         49        0.49       98.80
        254 |         12        0.12       98.92
        358 |        104        1.04       99.96
        365 |          3        0.03       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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