How to interpret constant species in variable-sized compart

[sbmlsecretary]

Raised by Lucian during the SBML Editors\\\' meeting during HARMONY 2012:

Consider a model with a species with no rules about how the species itself changes (no reactions, no rules), with the attribute \\\'hasOnlySubstanceUnits=false\\\', and which is in a compartment whose size changes. Its amount does not change, but its concentration does. Is it valid to give this species the attribute \\\'constant=true\\\', or must it be flagged \\\'constant=false\\\'?

This is never explicitly stated in the spec.

Reported by: mhucka

Original Ticket: sbml/sbml-specifications//216

[sbmlsecretary]

(as stated for l3v1: yes, you may flag it for anything, so that algebraic rules know what to do with it)

Original comment by: luciansmith

[sbmlsecretary]

I agree with the proposed change and that it should be done.

Original comment by: luciansmith

[sbmlsecretary]

The specification should say that the constant flag is with respect to the amount in all case.

Original comment by: ccmyers

[sbmlsecretary]

I am accepting this issue as valid.

Original comment by: ccmyers

[sbmlsecretary]

I am accepting this issue as valid.

Original comment by: sarahkeating

[sbmlsecretary]

Should this be when hOSU=true ??

Original comment by: sarahkeating

[sbmlsecretary]

I am accepting this issue as valid.

Original comment by: lenov

[sbmlsecretary]

• status: open --> closed

Original comment by: mhucka

[sbmlsecretary]

This is a subset of issue report #3487945. Closing this one.

Original comment by: mhucka

[sbmlsecretary]

• Group: Reported-Proposed --> Rejected-No_action

Original comment by: luciansmith

[sbmlsecretary]

Fixing the Milestone tags of old closed issues. (Though this is a duplicate, and we don't have a 'duplicate' tag, but oh well.)

Original comment by: luciansmith

[sbmlsecretary]

• Group: Rejected-No_action --> Closed - Duplicate

Original comment by: luciansmith