Frequencies for first 10,000 rows of rx6v3c2 variable in nhamcsed2009 dataset :

   for rx6, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,938       99.38       99.38
        180 |          2        0.02       99.40
        196 |         14        0.14       99.54
        197 |          1        0.01       99.55
        198 |         10        0.10       99.65
        203 |          1        0.01       99.66
        210 |          1        0.01       99.67
        211 |         11        0.11       99.78
        239 |          4        0.04       99.82
        268 |          2        0.02       99.84
        292 |          1        0.01       99.85
        385 |          8        0.08       99.93
        386 |          1        0.01       99.94
        388 |          3        0.03       99.97
        389 |          1        0.01       99.98
        407 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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