Frequencies for first 10,000 rows of rx8cat2 variable in nhamcsopd2006 dataset :

     for rx8, multum drug category #2 - |
                               detailed |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
          Anti-infectives: sulfanomides |          3        0.03        0.03
    Cardiovascular agents: vasodilators |          5        0.05        0.08
Miscellaneous agents: local injectable  |          2        0.02        0.10
Nutritional products: minerals and elec |          4        0.04        0.14
     Respiratory agents: antihistamines |          1        0.01        0.15
       Respiratory agents: antitussives |          3        0.03        0.18
Respiratory agents: miscellaneous respi |          1        0.01        0.19
Metabolic agents: antihyperlipidemic ag |          1        0.01        0.20
   Miscellaneous agents: antirheumatics |          1        0.01        0.21
CNS: Antiemetic/antivertigo agents: phe |          5        0.05        0.26
CNS: Antiemetic/antivertigo agents: mis |          4        0.04        0.30
CNS: Anticonvulsants: Barbiturate antic |          1        0.01        0.31
CNS: Anticonvulsants: Benzodiazepine an |          7        0.07        0.38
Coagulation modifiers: antiplatelet age |         17        0.17        0.55
Alternative medicines: nutraceutical pr |          1        0.01        0.56
Miscellaneous agents: genitourinary tra |          2        0.02        0.58
CNS: Anti-Parkinson agents: dopaminergi |          1        0.01        0.59
Metabolic agents: antihyperuricemic age |          1        0.01        0.60
Topical agents: dermatological agents:  |          1        0.01        0.61
Hormones: adrenal cortical steroids: gl |          1        0.01        0.62
Metabolic agents: antihyperlipidemic ag |          1        0.01        0.63
Miscellaneous agents: smoking cessation |          4        0.04        0.67
Cardiovascular agents: aldosterone rece |          8        0.08        0.75
                                      . |      9,925       99.25      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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