[gmx-users] Combining energy files

2011-09-27 Thread Martin Kamp Jensen
Hello, I need to combine several trajectories (.xtc) and energy file (.edr) pairs. In the end I need all the conformations of the trajectories and a specific energy value for each of them. To combine two trajectories, I use trjcat [1] like this: trjcat -f first.xtc second.xtc -o combined.xtc

Re: [gmx-users] Combining energy files

2011-09-27 Thread Martin Kamp Jensen
On Tue, Sep 27, 2011 at 3:09 PM, Justin A. Lemkul jalem...@vt.edu wrote: Martin Kamp Jensen wrote: Hello, I need to combine several trajectories (.xtc) and energy file (.edr) pairs. In the end I need all the conformations of the trajectories and a specific energy value for each of them

Re: [gmx-users] Combining energy files

2011-09-27 Thread Martin Kamp Jensen
On Wed, Sep 28, 2011 at 1:33 AM, Mark Abraham mark.abra...@anu.edu.auwrote: On 28/09/2011 9:11 AM, Martin Kamp Jensen wrote: On Tue, Sep 27, 2011 at 3:09 PM, Justin A. Lemkul jalem...@vt.edu wrote: Martin Kamp Jensen wrote: Hello, I need to combine several trajectories (.xtc

Re: [gmx-users] Re: Frame/conformation in trajectory is ignored

2011-07-16 Thread Martin Kamp Jensen
On Fri, Jul 15, 2011 at 1:41 PM, Mark Abraham mark.abra...@anu.edu.auwrote: ** On 15/07/2011 7:31 PM, Martin Kamp Jensen wrote: Hello, I am trying to evaluate energy values of several conformations using a (pseudo)trajectory. Currently, I am concatenating GROMOS-96 files (.g96) and using

[gmx-users] Re: Frame/conformation in trajectory is ignored

2011-07-15 Thread Martin Kamp Jensen
Hello, I am trying to evaluate energy values of several conformations using a (pseudo)trajectory. Currently, I am concatenating GROMOS-96 files (.g96) and using that as a trajectory. For some reason the second conformation in a trajectory is ignored. So e.g. if I have three conformations (1.g96,

Re: [gmx-users] Converting between cartesian coordinates and torsion angles

2010-11-14 Thread Martin Kamp Jensen
Hi Mark, Thanks (again, again) for your input! On Fri, Nov 12, 2010 at 5:35 PM, Mark Abraham mark.abra...@anu.edu.auwrote: On 13/11/2010 12:49 AM, Martin Kamp Jensen wrote: Hi, As far as I understand, a topology (a .top file) and a conformation (e.g., a .gro file) contain enough

[gmx-users] Converting between cartesian coordinates and torsion angles

2010-11-12 Thread Martin Kamp Jensen
Hi, As far as I understand, a topology (a .top file) and a conformation (e.g., a .gro file) contain enough information to calculate the torsion angles of that specific conformation. Table 5.5 (page 124) in the GROMACS manual[1] describes possible interactions (which are contained in the

Re: [gmx-users] Using mdrun -rerun to get energy values

2010-11-07 Thread Martin Kamp Jensen
Hi Mark, On Sun, Nov 7, 2010 at 2:54 AM, Mark Abraham mark.abra...@anu.edu.auwrote: On 7/11/2010 4:14 AM, Martin Kamp Jensen wrote: Hi Chris, On Sat, Nov 6, 2010 at 5:58 PM, Krzysztof Mlynarczyk mitomas...@gmail.com wrote: Hi, You need to use md integrator for -rerun to work

[gmx-users] Using mdrun -rerun to get energy values

2010-11-06 Thread Martin Kamp Jensen
Hello, Hopefully someone can help me understand how to use the mdrun -rerun functionality, because currently I am confused. I would like to be able to look up potential energy values for a number of conformations by calling mdrun -rerun once. The idea to use mdrun -rerun is from advice given to

Re: [gmx-users] Using mdrun -rerun to get energy values

2010-11-06 Thread Martin Kamp Jensen
/mdrun.html With -rerun an input trajectory can be given for which forces and energies will be (re)calculated. Neighbor searching will be performed for every frame, unless nstlist is zero (see the .mdp file). Good luck, Chris 2010/11/6 Martin Kamp Jensen martin.kamp.jen...@gmail.com Hello