Frequencies for first 10,000 rows of rx4v3c2 variable in nhamcsed2010 dataset :

   For RX4, |
 level 3 of |
MULTUM drug |
category #2 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,798       97.98       97.98
        180 |          5        0.05       98.03
        196 |         57        0.57       98.60
        198 |         37        0.37       98.97
        201 |          1        0.01       98.98
        203 |         11        0.11       99.09
        210 |         12        0.12       99.21
        211 |         17        0.17       99.38
        239 |         12        0.12       99.50
        268 |          2        0.02       99.52
        292 |          2        0.02       99.54
        297 |          2        0.02       99.56
        385 |         30        0.30       99.86
        388 |          9        0.09       99.95
        389 |          4        0.04       99.99
        407 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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