Fix to bug #5746.
The bug report submitted by Chris MacRaild "c.a.macraild at leeds.ac.uk" is located at https://gna.org/bugs/?func=detailitem&item_id=5746.
The issue was simply an incorrect test in the 'self.model_statistics()' function of the model-free specific code. An 'and' should have been an 'or'.
Authored by: bugman 2006-04-11
Parent: [r2461]
Child: [r2463]
