table of contents
g_vanhove(1) | GROMACS suite, VERSION 4.5.4-dev-20110404-bc5695c | g_vanhove(1) |
NAME¶
g_vanhove - calculates Van Hove displacement functionsSYNOPSIS¶
g_vanhove -f traj.xtc -s topol.tpr -n index.ndx -om vanhove.xpm -or vanhove_r.xvg -ot vanhove_t.xvg -[no]h -[no]version -nice int -b time -e time -dt time -[no]w -xvg enum -sqrt real -fm int -rmax real -rbin real -mmax real -nlevels int -nr int -fr int -rt real -ft intDESCRIPTION¶
g_vanhove computes the Van Hove correlation function. The Van Hove G(r,t) is the probability that a particle that is at r0 at time zero can be found at position r0+r at time t. g_vanhove determines G not for a vector r, but for the length of r. Thus it gives the probability that a particle moves a distance of r in time t. Jumps across the periodic boundaries are removed. Corrections are made for scaling due to isotropic or anisotropic pressure coupling.FILES¶
-f traj.xtc InputTrajectory: xtc trr trj gro g96 pdb cpt
Structure+mass(db): tpr tpb tpa gro g96 pdb
Index file
X PixMap compatible matrix file
xvgr/xmgr file
xvgr/xmgr file
OTHER OPTIONS¶
-[no]hnoPrint help info and quit
Print version info and quit
Set the nicelevel
First frame (ps) to read from trajectory
Last frame (ps) to read from trajectory
Only use frame when t MOD dt = first time (ps)
View output .xvg, .xpm, .eps and .pdb files
xvg plot formatting: xmgrace, xmgr or none
Use sqrt(t) on the matrix axis which binspacing in sqrt(ps)
Number of frames in the matrix, 0 is plot all
Maximum r in the matrix (nm)
Binwidth in the matrix and for -or (nm)
Maximum density in the matrix, 0 is calculate (1/nm)
Number of levels in the matrix
Number of curves for the -or output
Frame spacing for the -or output
Integration limit for the -ot output (nm)
Number of frames in the -ot output, 0 is plot all
SEE ALSO¶
gromacs(7)Mon 4 Apr 2011 |