Frequencies for first 10,000 rows of rx5cat2 variable in nhamcsed2006 dataset :

     for rx5, multum drug category #2 - |
                               detailed |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
anti-infectives: miscellaneous antibiot |          4        0.04        0.04
          anti-infectives: sulfanomides |          3        0.03        0.07
    cardiovascular agents: vasodilators |          6        0.06        0.13
    cardiovascular agents: vasopressors |          2        0.02        0.15
miscellaneous agents: local injectable  |          6        0.06        0.21
nutritional products: minerals and elec |          2        0.02        0.23
     respiratory agents: antihistamines |          8        0.08        0.31
       respiratory agents: antitussives |          7        0.07        0.38
respiratory agents: miscellaneous respi |         18        0.18        0.56
cns: antiemetic/antivertigo agents: phe |         18        0.18        0.74
cns: antiemetic/antivertigo agents: mis |          7        0.07        0.81
cns: anticonvulsants: benzodiazepine an |          9        0.09        0.90
psychotherapeutic agents: antipsychotic |          3        0.03        0.93
coagulation modifiers: antiplatelet age |         11        0.11        1.04
anti-infectives: antimalarial agents: m |          3        0.03        1.07
cns: anti-parkinson agents: dopaminergi |          1        0.01        1.08
hormones: adrenal cortical steroids: gl |          1        0.01        1.09
                                      . |      9,891       98.91      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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