I am running a docking_protocol for two proteins. Inspecting the score.sc file, I find that the columns Fnat and Irms are “nan” (Not A Number, I suppose). Why could this be happening? I can post more details if needed.
I just realized that the starting pdb I am using to run the docking simulation has both protein chains separated, which means that the initial structure has no interface. So that explains why Irms is nan (right?).
So that leaves Fnan. What does it mean and why is it also NaN?