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Topic: Function parameters default value
Replies: 1   Last Post: Jul 27, 2012 12:36 AM

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Lafin Myazov

Posts: 10
Registered: 7/27/12
Re: Function parameters default value
Posted: Jul 27, 2012 12:36 AM
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Earlier today, usenet's grand fumblewit Christopher wrote:

> I like to use:
> function foo = fx(arg1,arg2)
> if ~exsit('arg1','var')
> arg1 = 'default value';
> end
>
> that way if the user types:
> foo = fx(,'bar'); %user intentionally omits first parameter in call to
> fx.
>
> the program will assume arg1 as 'default value'.
>
> I don't like to check with varargs nargs etc, because this can force
> particularities in parameter order when I don't want that (in general).


hmmm... I doubt my version of Matlab has a parameter named "exsit".
Perhaps it's a hidden feature.




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