[gmx-users] hessian_matrix_from_ordered_trajectory

2007-04-05 Thread Sang-Min Park
Dear all, I calculated the eigenvalues and eigenvectors from a small peptide with a closest water neighboorhood watersurrounding. To do this I generated a new trajectory with the command trjorder to order the watermolecules in a way so that they are close to the center of mass of the

Re: [gmx-users] hessian_matrix_from_ordered_trajectory

2007-04-05 Thread Tsjerk Wassenaar
Hi Sang Min, The distance from the center of mass is not a proper identifier for these kinds of calculations. To do this properly, you have to map the water molecules to specific positions around your peptide, and base your identifiers on that. E.g. if you have: H2O-peptide--OH2 and

Re: [gmx-users] hessian_matrix_from_ordered_trajectory

2007-04-05 Thread H.J.Risselada
On Thu, 5 Apr 2007 18:53:58 +0200 Sang-Min Park [EMAIL PROTECTED] wrote: Dear all, I calculated the eigenvalues and eigenvectors from a small peptide with a closest water neighboorhood watersurrounding. To do this I generated a new trajectory with the command trjorder to order the