The elasticity ids returned by getElasticityIds() and the Ids in the headers when calling simulate are different.

[hsauro]

If a user calls getElasticityIds() in the C API they will get names of the form

'ec(J2, S1)'

On the other hand, the column headers returned by simulate will return headers of the form

'ec(J2,S1)'

The latter has no space after J2. Both Ids should be identical.