> Dear all, > > Using > > g_angle -f ../trj1_0_100.xtc -s ../g_prot.tpr -n test.ndx -or -type > dihedral -e 10000 > g_covar -f traj.trr -s dummy.gro -nofit > > It seems like the trajectory is of a different length, because a > different timestep seems to be used: Well, you are using a different trajectory file... Mark