I've got a complicated default value for an argument, basically a "control"
argument that's a list with a lot of defaults, and I want to figure out its
value before dispatching to a method so I don't need to have the same code
repeated at the beginning of every method. None of the default
> On Apr 19, 2024, at 1:36 PM, CRAN.r via R-help wrote:
>
> Is there a way to pass a modified argument from an S3 generic to a method?
> Here's a non-working example that I want to return "abcd".
>
grep-ing the source code is often a good way to answer a question like this.
Particularly,
The parameters in a specific call to a function are stored in a special list
which is used to move/copy data from the calling environment into the
environment created for a particular function call.
UseMethod does not act like a normal function call... it does a kind of magic
substitution of
I do not understand what your goal is here (more context may be helpful,
perhaps to others rather than me). So I doubt this is what you want, but
here is a guess -- no need to respond if it is unhelpful:
## test.default returns NULL if object "y" not found in **calling
environment and
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