Frequencies for first 10,000 rows of rx6cat2 variable in nhamcsed2006 dataset :

     for rx6, multum drug category #2 - |
                               detailed |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
anti-infectives: miscellaneous antibiot |          4        0.04        0.04
    cardiovascular agents: vasodilators |          3        0.03        0.07
    cardiovascular agents: vasopressors |          2        0.02        0.09
miscellaneous agents: local injectable  |          2        0.02        0.11
nutritional products: minerals and elec |          4        0.04        0.15
     respiratory agents: antihistamines |          5        0.05        0.20
respiratory agents: miscellaneous respi |          6        0.06        0.26
topical agents: dermatological agents:  |          2        0.02        0.28
cns: antiemetic/antivertigo agents: phe |          9        0.09        0.37
cns: antiemetic/antivertigo agents: mis |          2        0.02        0.39
cns: anticonvulsants: benzodiazepine an |          5        0.05        0.44
psychotherapeutic agents: antipsychotic |          3        0.03        0.47
coagulation modifiers: antiplatelet age |          6        0.06        0.53
topical agents: vaginal preprations: va |          1        0.01        0.54
                                      . |      9,946       99.46      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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