ERROR: No integration method has been defined

Roofit and RooStats
1

Dear Experts,
I’m getting the following error in RooFit:

ERROR:Integration – RooNumIntFactory::createIntegrator: No integration method has been defined for an open ended 2-dimensional integral

How can I solve it ?
Many thanks,

  • Mauro.
2

HI,

You should set boundary on the integration variables

Lorenzo

3

Hi Lorenzo,
many thanks for your reply.

I order for me to to understand it better:
let’s say I have a 2D Gaussian. Even in this case
I have to set limits on the integration variables ?

Many thanks,

  • Mauro.
4

Yes, the numerical integration method works only if the variables are bounded. However, you could apply a variable transformation to transform from open to bounded variables, but this is bit currently implemented in the code, you will have to do yourself

Cheers

Lorenzo