Frequencies for first 10,000 rows of rx8v1c1 variable in nhamcsed2008 dataset :

   for rx8, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,854       98.54       98.54
        001 |          7        0.07       98.61
        040 |         21        0.21       98.82
        057 |         49        0.49       99.31
        081 |          2        0.02       99.33
        087 |         17        0.17       99.50
        097 |          4        0.04       99.54
        105 |          6        0.06       99.60
        115 |         14        0.14       99.74
        122 |         11        0.11       99.85
        133 |          1        0.01       99.86
        218 |          1        0.01       99.87
        242 |          5        0.05       99.92
        254 |          1        0.01       99.93
        358 |          6        0.06       99.99
        365 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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