Re: matlab nargin() function alternative in octave?

[taltman]

On Jan 21, 2004 at 12:05am, Sharene Deanne Bungay wrote:

sbunga >Hi Tomer,
sbunga >Excellent point, and a very clean solution....if I had control
sbunga >of the functional definitions so that I could call myfunc selectively

Wait, you don't have control over the Matlab M-files? Are they
read-only? You can always copy them...

sbunga >as myfunc1 and myfunc2. Unfortunately, my situation involves
sbunga >a bunch of matlab code, where the existing third-party code is what
sbunga >defines myfunc to be any one of several very different functions,
sbunga >depending on what "module" is selected by the user. The rest of the code

Well, I guess the user has to select the module sometime, so why not
use that in a message-passing function?

sbunga >then uses whatever function is defined in whichever one of these
sbunga >modules, under a single name "myfunc". Thus, most of the code has
sbunga >no idea a priori what "myfunc" actually looks like, but it knows
sbunga >what to do given the number of arguments that myfunc() takes.

If this entire module is in your path, and the multiple copies (lets
say around 25) of "myfunc" are in that module, then how does your
program differentiate between them? Though this is not your fault,
this sounds like extremely bad coding practice (i.e. meaningless
function names ).

If the appropriate version of "myfunc" is automagically selected based
on the user module selection, then you have an a priori mapping
between a 'message' (the chosen module), and the function inputs. No
fancy-smancy specialty function necessary.

---


Okay, I've read your post a second time, and I think that I understand
it more. But can you clarify the following?

1. You're writing a module/library, which will call the Matlab
   modules/libraries, and will be used by a third-party?

2. You're writing a script yourself which calls the Matlab
   libraries/modules?

If I've misunderstood what you've written, please correct me.

Thanks,

~Tomer



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