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Add GChatter argument to print() method. The print() method now takes an argument of type GChatter to control the chattiness of the output in a homogenous manner. Pass NORMAL chatter level in __str__ method. Add chatter argument to print() methods. Use GLog::chatter() method to control the chattiness of the log stream operator. Add chatter() methods and provide member access through const references. Add chatter() methods, provide member access through const references, and declare one liners as inline methods. The chatter() methods control the new m_chatter attribute that is used to control the chattiness of the object's print() methods. name() and version() methods return const references. logFileOpen() method now sets the chattiness from the applications's chatter parameter, and name() and version() methods now return a const reference.
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This value is needed in the eval_gradients() method and takes up most of the computing time. Including it in the common eval() and eval_gradients() pre computation cache makes eval() slower in case that the method is called subsequently with different energies or parameters.
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The value constructor now takes an object of type GEnergy for the pivot energy. Methods have been added to access are three model parameters. Evaluation caches have been added to support the eval(), eval_gradients() and mc() methods. This speeds up evaluation of the spectrum, in particular for binned analysis, and the simulation of photons.
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The eval_gradients() method is no longer const to reflect the fact that the method explicitly sets the gradient attribute of the model parameters.
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The GModelPar interface has been revisited and the code has been adapted to satisfy the new interface.
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The autoscale() method has been removed as it exists now in the GModelSpectral() base class. The parameter constructor now calls autoscale() to perform an autoscaling of all model parameters.
