Frequencies for first 10,000 rows of rx15v1c4 variable in namcs2015 dataset :

  For RX15, |
 level 1 of |
MULTUM drug |
category #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,996       99.96       99.96
        057 |          1        0.01       99.97
        254 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017