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g_options(1) [debian man page]

g_options(1)						   GROMACS suite, VERSION 4.5.4 					      g_options(1)

NAME
g_options - Utility program for generating GROMACS documentation VERSION 4.5.4 SYNOPSIS
g_options -[no]h -[no]version -nice int DESCRIPTION
GROMACS programs have some standard options, of which some are hidden by default: OTHER OPTIONS
-[no]hno Print help info and quit -[no]versionno Print version info and quit -nice int 0 Set the nicelevel KNOWN PROBLEMS
- If the configuration script found Motif or Lesstif on your system, you can use the graphical interface (if not, you will get an error): -X gmx_bool no Use dialog box GUI to edit command line options - When compiled on an SGI-IRIX system, all GROMACS programs have an additional option: -npri int 0 Set non blocking priority (try 128) - Optional files are not used unless the option is set, in contrast to non-optional files, where the default file name is used when the option is not set. - All GROMACS programs will accept file options without a file extension or filename being specified. In such cases the default filenames will be used. With multiple input file types, such as generic structure format, the directory will be searched for files of each type with the supplied or default name. When no such file is found, or with output files the first file type will be used. - All GROMACS programs with the exception of mdrun and eneconv check if the command line options are valid. If this is not the case, the program will be halted. - Enumerated options (enum) should be used with one of the arguments listed in the option description, the argument may be abbreviated. The first match to the shortest argument in the list will be selected. - Vector options can be used with 1 or 3 parameters. When only one parameter is supplied the two others are also set to this value. - All GROMACS programs can read compressed or g-zipped files. There might be a problem with reading compressed .xtc, .trr and .trj files, but these will not compress very well anyway. - Most GROMACS programs can process a trajectory with fewer atoms than the run input or structure file, but only if the trajectory consists of the first n atoms of the run input or structure file. - Many GROMACS programs will accept the -tu option to set the time units to use in output files (e.g. for xmgr graphs or xpm matrices) and in all time options. SEE ALSO
gromacs(7) More information about GROMACS is available at <http://www.gromacs.org/>. Mon 21 Mar 2011 g_options(1)

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g_morph(1)					 GROMACS suite, VERSION 4.5.4-dev-20110404-bc5695c					g_morph(1)

NAME
g_morph - linear interpolation of conformations VERSION 4.5.4-dev-20110404-bc5695c SYNOPSIS
g_morph -f1 conf1.gro -f2 conf2.gro -o interm.xtc -or rms-interm.xvg -n index.ndx -[no]h -[no]version -nice int -[no]w -xvg enum -ninterm int -first real -last real -[no]fit DESCRIPTION
g_morph does a linear interpolation of conformations in order to create intermediates. Of course these are completely unphysical, but that you may try to justify yourself. Output is in the form of a generic trajectory. The number of intermediates can be controlled with the -ninterm flag. The first and last flag correspond to the way of interpolating: 0 corresponds to input structure 1 while 1 corresponds to input structure 2. If you specify -first 0 or -last 1 extrapolation will be on the path from input structure x1 to x2. In general, the coordinates of the intermediate x(i) out of N total intermidates correspond to: x(i) = x1 + (first+(i/(N-1))*(last-first))*(x2-x1) Finally the RMSD with respect to both input structures can be computed if explicitly selected ( -or option). In that case, an index file may be read to select the group from which the RMS is computed. FILES
-f1 conf1.gro Input Structure file: gro g96 pdb tpr etc. -f2 conf2.gro Input Structure file: gro g96 pdb tpr etc. -o interm.xtc Output Trajectory: xtc trr trj gro g96 pdb cpt -or rms-interm.xvg Output, Opt. xvgr/xmgr file -n index.ndx Input, Opt. Index file OTHER OPTIONS
-[no]hno Print help info and quit -[no]versionno Print version info and quit -nice int 0 Set the nicelevel -[no]wno View output .xvg, .xpm, .eps and .pdb files -xvg enum xmgrace xvg plot formatting: xmgrace, xmgr or none -ninterm int 11 Number of intermediates -first real 0 Corresponds to first generated structure (0 is input x0, see above) -last real 1 Corresponds to last generated structure (1 is input x1, see above) -[no]fityes Do a least squares fit of the second to the first structure before interpolating SEE ALSO
gromacs(7) More information about GROMACS is available at <http://www.gromacs.org/>. Mon 4 Apr 2011 g_morph(1)
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