Re: [SOSlib-discuss] new error 100008 Model doesn't provide a value

[Rainer M. <ra...@tb...>]

On Mon, 27 Oct 2008, Eric Fernandez wrote:

> Hi,
>
> I have recompiled a recent CVS version of SOSlib and noticed that error
> in my model:
> Error     100008  SBML Model doesn't provide a value for SBML ID sink,
> value defaults to 0!
>
> Before this was just a warning, is it normal it has now become an error?
> Besides, if the engine decides to provide a default value, shouldn't it
> be a warning only?

Hi Eric,

I implemented this stricter behaviour, because in the strict SBML-sense 
the model is underspecified and should not be integrated. This defaulting 
to 0 used to be done to avoid a solver-crash at a later point.

I am not sure, but I tend to leave it as an error, as the 
integration results are depending on an arbitrary choice. E.g. in 
earlier SBML versions a missing compartment size defaulted to 1; with 0 on 
the other hand the value could lead to illegal divisions.

Opinions?

Rainer


>
> Thanks,
> Eric
>
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