Frequencies for first 10,000 rows of rx4v3c2 variable in nhamcsed2015 dataset :

   For RX4, |
 level 3 of |
MULTUM drug |
category #2 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,821       98.21       98.21
        180 |          8        0.08       98.29
        185 |          4        0.04       98.33
        186 |          1        0.01       98.34
        196 |          9        0.09       98.43
        198 |         45        0.45       98.88
        203 |         23        0.23       99.11
        210 |          5        0.05       99.16
        211 |         31        0.31       99.47
        239 |          4        0.04       99.51
        268 |          5        0.05       99.56
        292 |          2        0.02       99.58
        385 |         28        0.28       99.86
        386 |          1        0.01       99.87
        387 |          1        0.01       99.88
        388 |          7        0.07       99.95
        389 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017