[Rd] docu buglets for ar and friends

[Kjetil Brinchmann Halvorsen]

This is R2.1.1

The documantation opened by
?ar, section for returned value, does not document all the components of 
the returned
list. In addition to the 13 components documented, it also contains the 
component
$frequency
This also applies to the help page opened by
?ar.ols

-- 

Kjetil Halvorsen.

Peace is the most effective weapon of mass construction.
               --  Mahdi Elmandjra





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