I have a question regarding the ROOT::Math::Minimizer.
I had performed the Log-likelihood on my energy reconstruction algorithm.
But sometimes, error(i think it was failed case) has occurred even though same events & same data.
Error message is below,
FUNCTION VALUE DOES NOT SEEM TO DEPEND ON ANY OF THE 4 VARIABLE PARAMETERS.
VERIFY THAT STEP SIZES ARE BIG ENOUGH AND CHECK FCN LOGIC.
According to my personal investigation, all input parameter for minimization was all ‘-nan’.
I think there are some randomized thing in the minimizing process.
So i want to check the status of minimizing process.
I already checked the item like,
Is there any recommendation or tips to check the condition of my minimization process?
_Platform: CentOS Linux