Banerjee, A.; Carrion-i-Silvestre, JL (2015): brkfactors_heterog1.e - AIC/BIC and homogeneous break

Hi everyone!

I've been running this code: https://github.com/aptech/gauss-carrion-library/blob/master/examples/brkfactors_heterog1.e and I've got two questions.

1. I've noticed in the literature that authors report Z-statistics along with AIC/BIC for each estimated model. I am not sure I understand how they get the AIC/BIC values but I'd like to have them because they seem to be pretty important.
2. How can the above code be amended so that instead of getting heterogeneous structural break I receive one homogeneous break?

Thank you for your time and help.