Calling parent constructors in R with multiple inheritance -

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i'm trying have class call parent constructors, callnextmethod calls first parent. namely, if have

setclass('a') setclass('b') setclass('c', contains = c('a','b'))

and define initialize methods three, printing 'in a', 'in b', , 'in c', respectively, callnextmethod in initialize method of c, prints 'in a'. there way dispatch constructors?

(and yes, know multiple inheritance bad; i'm trying implement notion of mixins , happens appropriate way it)


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