[R] Getting *types* of arguments?

[Georg Hoermann]

Hello world,

short question: is there a possibility to get a list of
arguments of a function *with* variable/parameter types?

formals() gives me the names of the parameters, but says
nothing about the parameter type it expects (I know I can always use the 
help function). 

I would like somthing like

$x: vector or data.frame...

Thanks in advance...

Georg


-- 
Georg Hoermann, Fachabteilung Wasserwirtschaft / Dep. Hydrology  
Ecosystem Research Center, Kiel University, Germany, Penguin #189476
Tel. 0431-880-1207, 0172/4315715, ICQ: 348340729, MSN: hlschorsch