R help - Mar 2023 - Default Generic function for: args(name, default = TRUE)

Dear Gregg,

Thank you for the fast response.

I believe though that isGeneric works only for S4-functions:

isGeneric("plot")
# FALSE

I still try to get it to work.

Sincerely,

Leonard


On 3/8/2023 9:13 PM, Gregg Powell wrote:
> Yes, there is a way to check if a function is generic. You can use the
isGeneric function to check if a function is generic. Here's an updated
version of the args function that includes a check for generic functions:
>
>> args = function(name, default = TRUE) {
>>   if(default && isGeneric(name)) {
>>    fn = paste0(as.character(name), ".default")
>>    name = fn
>> }
>> .Internal(args(name))
>> }
> r/
> Gregg
>
>
>
>
>
> ------- Original Message -------
> On Wednesday, March 8th, 2023 at 12:09 PM, Leonard Mada via R-help
<r-help at r-project.org> wrote:
>
>
>> Dear R-Users,
>>
>> I want to change the args() function to return by default the arguments
>> of the default generic function:
>> args = function(name, default = TRUE) {
>> # TODO: && is.function.generic();
>> if(default) {
>> fn = match.call()[[2]];
>> fn = paste0(as.character(fn), ".default");
>> name = fn;
>> }
>> .Internal(args(name));
>> }
>>
>> Is there a nice way to find out if a function is generic: something
like
>> is.function.generic()?
>>
>> Many thanks,
>>
>> Leonard
>> ======>>
>> Note:
>> - the latest version of this code will be on GitHub: [edited]
>> https://github.com/discoleo/R/blob/master/Stat/Tools.Code.R
>>
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