Hi, I am doing different tests with the full_analysis.py script, data at three magnetic fields and different PDB structures (taken from MD simulations). I realized that those different structures give rise to different optimization times and also to different chi-squared values for the different diffusion tensors (I have only tried the prolate diffusion tensor). I wonder if the structures need to be processed before giving as inputs for relax. Especially, do the structures need to be centered relative to their inertia tensor (like with the pdbinertia program that one should use prior to model-free analysis using ModelFree). Thanks ! Sébastien :) -- ______________________________________ _______________________________________________ | | || Sebastien Morin || ||| Etudiant au PhD en biochimie ||| |||| Laboratoire de resonance magnetique nucleaire |||| ||||| Dr Stephane Gagne ||||| |||| CREFSIP (Universite Laval, Quebec, CANADA) |||| ||| 1-418-656-2131 #4530 ||| || || |_______________________________________________| ______________________________________