Frequencies for first 10,000 rows of rx8v1c1 variable in nhamcsopd2008 dataset :

   for rx8, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,078       90.78       90.78
        001 |         31        0.31       91.09
        020 |          7        0.07       91.16
        028 |          6        0.06       91.22
        040 |        142        1.42       92.64
        057 |        170        1.70       94.34
        081 |         29        0.29       94.63
        087 |         74        0.74       95.37
        097 |         36        0.36       95.73
        105 |         32        0.32       96.05
        115 |         95        0.95       97.00
        122 |         46        0.46       97.46
        133 |         43        0.43       97.89
        218 |         17        0.17       98.06
        242 |         45        0.45       98.51
        254 |         17        0.17       98.68
        331 |          3        0.03       98.71
        358 |        124        1.24       99.95
        365 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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