class RooStats::IntervalCalculator

IntervalCalculator is an interface class for a tools which produce RooStats ConfIntervals. The interface currently assumes that any interval calculator can be configured by specifying:

• a model,
• a data set,
• a set of parameters of interest,
• a set of nuisance parameters (eg. parameters on which the model depends, but are not of interest), and
• a confidence level or size of the test (eg. rate of Type I error).

The interface allows one to pass the model, data, and parameters via a workspace and then specify them with names. The interface will be extended so that one does not need to use a workspace.

After configuring the calculator, one only needs to ask GetInterval, which will return a ConfInterval pointer.

The concrete implementations of this interface should deal with the details of how the nuisance parameters are dealt with (eg. integration vs. profiling) and which test-statistic is used (perhaps this should be added to the interface).

The motivation for this interface is that we hope to be able to specify the problem in a common way for several concrete calculators.