Frequencies for first 10,000 rows of rx8v1c1 variable in nhamcsed2009 dataset :

   for rx8, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,853       98.53       98.53
        001 |         15        0.15       98.68
        020 |          1        0.01       98.69
        040 |         17        0.17       98.86
        057 |         46        0.46       99.32
        081 |          5        0.05       99.37
        087 |         14        0.14       99.51
        097 |          1        0.01       99.52
        105 |          4        0.04       99.56
        115 |         15        0.15       99.71
        122 |         10        0.10       99.81
        133 |          3        0.03       99.84
        218 |          1        0.01       99.85
        242 |          4        0.04       99.89
        254 |          1        0.01       99.90
        331 |          1        0.01       99.91
        358 |          8        0.08       99.99
        365 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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