On Thu, 17 Feb 2005, Georg Hoermann wrote:
Hello world,
short question: is there a possibility to get a list of arguments of a function *with* variable/parameter types?
Do you mean `argument' or `formal argument' or `parameter' or `variable'?
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...
No, because R's argument matching is polymorphic and many functions have arguments that accept many types, or coerce arguments to the required type.
BTW, a data frame is a list which is a vector, so your example isn't very realistic and shows that `type' is not a concept you have clear. R has modes (?mode), types (?typeof) and classes (?class). Neither `vector' nor `data frame' is a type.
-- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595
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