3 <TITLE>GROMACS
4.0.7 Online Reference
</TITLE>
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12 <a href=
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23 Sun
18 Jan
2009</B></td>
29 <TABLE BORDER=
0 CELLSPACING=
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10>
31 <TD VALIGN=top
WIDTH=
"25%">
33 <A HREF=
"online/getting_started.html">Getting Started
</a>
35 <A HREF=
"online/flow.html">Flow Chart
</a>
37 <A HREF=
"online/files.html">File Formats
</a>
39 <A HREF=
"online/mdp_opt.html">mdp options
</a>
41 <A HREF=
"gmxfaq.html">FAQ
</a>
44 <TD VALIGN=top WIDTH=
75%
>
47 <A HREF=
"online/options.html">Options
</a>
49 <br><a href=online/anadock.html
>anadock
</a>
50 <br><a href=online/demux.pl.html
>demux.pl
</a>
51 <br><a href=online/do_dssp.html
>do_dssp
</a>
52 <br><a href=online/editconf.html
>editconf
</a>
53 <br><a href=online/eneconv.html
>eneconv
</a>
54 <br><a href=online/g_anaeig.html
>g_anaeig
</a>
55 <br><a href=online/g_analyze.html
>g_analyze
</a>
56 <br><a href=online/g_angle.html
>g_angle
</a>
57 <br><a href=online/g_bond.html
>g_bond
</a>
58 <br><a href=online/g_bundle.html
>g_bundle
</a>
59 <br><a href=online/g_chi.html
>g_chi
</a>
60 <br><a href=online/g_cluster.html
>g_cluster
</a>
61 <br><a href=online/g_clustsize.html
>g_clustsize
</a>
62 <br><a href=online/g_confrms.html
>g_confrms
</a>
63 <br><a href=online/g_covar.html
>g_covar
</a>
64 <br><a href=online/g_current.html
>g_current
</a>
65 <br><a href=online/g_density.html
>g_density
</a>
66 <br><a href=online/g_densmap.html
>g_densmap
</a>
67 <br><a href=online/g_dielectric.html
>g_dielectric
</a>
68 <br><a href=online/g_dih.html
>g_dih
</a>
69 <br><a href=online/g_dipoles.html
>g_dipoles
</a>
70 <br><a href=online/g_disre.html
>g_disre
</a>
71 <br><a href=online/g_dist.html
>g_dist
</a>
72 <br><a href=online/g_dyndom.html
>g_dyndom
</a>
73 <br><a href=online/g_enemat.html
>g_enemat
</a>
74 <br><a href=online/g_energy.html
>g_energy
</a>
75 <br><a href=online/g_filter.html
>g_filter
</a>
76 <br><a href=online/g_gyrate.html
>g_gyrate
</a>
77 <br><a href=online/g_h2order.html
>g_h2order
</a>
78 <br><a href=online/g_hbond.html
>g_hbond
</a>
79 <br><a href=online/g_helix.html
>g_helix
</a>
80 <br><a href=online/g_helixorient.html
>g_helixorient
</a>
81 <br><a href=online/g_kinetics.html
>g_kinetics
</a>
82 <br><a href=online/g_lie.html
>g_lie
</a>
83 <br><a href=online/g_mdmat.html
>g_mdmat
</a>
84 <br><a href=online/g_mindist.html
>g_mindist
</a>
85 <br><a href=online/g_morph.html
>g_morph
</a>
86 <br><a href=online/g_msd.html
>g_msd
</a>
87 <br><a href=online/g_nmeig.html
>g_nmeig
</a>
88 <br><a href=online/g_nmens.html
>g_nmens
</a>
89 <br><a href=online/g_nmtraj.html
>g_nmtraj
</a>
90 <br><a href=online/g_order.html
>g_order
</a>
91 <br><a href=online/g_polystat.html
>g_polystat
</a>
92 <br><a href=online/g_potential.html
>g_potential
</a>
93 <br><a href=online/g_principal.html
>g_principal
</a>
94 <br><a href=online/g_rama.html
>g_rama
</a>
95 <br><a href=online/g_rdf.html
>g_rdf
</a>
96 <br><a href=online/g_rms.html
>g_rms
</a>
97 <br><a href=online/g_rmsdist.html
>g_rmsdist
</a>
98 <br><a href=online/g_rmsf.html
>g_rmsf
</a>
99 <br><a href=online/g_rotacf.html
>g_rotacf
</a>
100 <br><a href=online/g_saltbr.html
>g_saltbr
</a>
101 <br><a href=online/g_sas.html
>g_sas
</a>
102 <br><a href=online/g_sdf.html
>g_sdf
</a>
103 <br><a href=online/g_sgangle.html
>g_sgangle
</a>
104 <br><a href=online/g_sham.html
>g_sham
</a>
105 <br><a href=online/g_sorient.html
>g_sorient
</a>
106 <br><a href=online/g_spatial.html
>g_spatial
</a>
107 <br><a href=online/g_spol.html
>g_spol
</a>
108 <br><a href=online/g_tcaf.html
>g_tcaf
</a>
109 <br><a href=online/g_traj.html
>g_traj
</a>
110 <br><a href=online/g_vanhove.html
>g_vanhove
</a>
111 <br><a href=online/g_velacc.html
>g_velacc
</a>
112 <br><a href=online/g_wham.html
>g_wham
</a>
113 <br><a href=online/genbox.html
>genbox
</a>
114 <br><a href=online/genconf.html
>genconf
</a>
115 <br><a href=online/genion.html
>genion
</a>
116 <br><a href=online/genrestr.html
>genrestr
</a>
117 <br><a href=online/gmxcheck.html
>gmxcheck
</a>
118 <br><a href=online/gmxdump.html
>gmxdump
</a>
119 <br><a href=online/grompp.html
>grompp
</a>
120 <br><a href=online/highway.html
>highway
</a>
121 <br><a href=online/make_edi.html
>make_edi
</a>
122 <br><a href=online/make_ndx.html
>make_ndx
</a>
123 <br><a href=online/mdrun.html
>mdrun
</a>
124 <br><a href=online/mk_angndx.html
>mk_angndx
</a>
125 <br><a href=online/ngmx.html
>ngmx
</a>
126 <br><a href=online/pdb2gmx.html
>pdb2gmx
</a>
127 <br><a href=online/protonate.html
>protonate
</a>
128 <br><a href=online/sigeps.html
>sigeps
</a>
129 <br><a href=online/tpbconv.html
>tpbconv
</a>
130 <br><a href=online/trjcat.html
>trjcat
</a>
131 <br><a href=online/trjconv.html
>trjconv
</a>
132 <br><a href=online/trjorder.html
>trjorder
</a>
133 <br><a href=online/wheel.html
>wheel
</a>
134 <br><a href=online/x2top.html
>x2top
</a>
135 <br><a href=online/xplor2gmx.pl.html
>xplor2gmx.pl
</a>
136 <br><a href=online/xpm2ps.html
>xpm2ps
</a>
137 <br><a href=online/xrama.html
>xrama
</a>
143 <h3>Programs by Topic
</h3>
145 <A HREF=
"#HNR1">Generating topologies and coordinates
</A><br>
146 <A HREF=
"#HNR2">Running a simulation
</A><br>
147 <A HREF=
"#HNR3">Viewing trajectories
</A><br>
148 <A HREF=
"#HNR4">Processing energies
</A><br>
149 <A HREF=
"#HNR5">Converting files
</A><br>
150 <A HREF=
"#HNR6">Tools
</A><br>
151 <A HREF=
"#HNR7">Distances between structures
</A><br>
152 <A HREF=
"#HNR8">Distances in structures over time
</A><br>
153 <A HREF=
"#HNR9">Mass distribution properties over time
</A><br>
154 <A HREF=
"#HNR10">Analyzing bonded interactions
</A><br>
155 <A HREF=
"#HNR11">Structural properties
</A><br>
156 <A HREF=
"#HNR12">Kinetic properties
</A><br>
157 <A HREF=
"#HNR13">Electrostatic properties
</A><br>
158 <A HREF=
"#HNR14">Protein specific analysis
</A><br>
159 <A HREF=
"#HNR15">Interfaces
</A><br>
160 <A HREF=
"#HNR16">Covariance analysis
</A><br>
161 <A HREF=
"#HNR17">Normal modes
</A><br>
165 <TABLE CELLSPACING=
1>
166 <TR><TD>
167 <TR><TD COLSPAN=
2><b>Generating topologies and coordinates
</b>
168 <TR><TD><A HREF=
"online/pdb2gmx.html">pdb2gmx
</A></TD><TD>converts pdb files to topology and coordinate files
</TD>
169 <TR><TD><A HREF=
"online/x2top.html">x2top
</A></TD><TD>generates a primitive topology from coordinates
</TD>
170 <TR><TD><A HREF=
"online/editconf.html">editconf
</A></TD><TD>edits the box and writes subgroups
</TD>
171 <TR><TD><A HREF=
"online/genbox.html">genbox
</A></TD><TD>solvates a system
</TD>
172 <TR><TD><A HREF=
"online/genion.html">genion
</A></TD><TD>generates mono atomic ions on energetically favorable positions
</TD>
173 <TR><TD><A HREF=
"online/genconf.html">genconf
</A></TD><TD>multiplies a conformation in 'random' orientations
</TD>
174 <TR><TD><A HREF=
"online/genrestr.html">genrestr
</A></TD><TD>generates position restraints or distance restraints for index groups
</TD>
175 <TR><TD><A HREF=
"online/protonate.html">protonate
</A></TD><TD>protonates structures
</TD>
179 <TABLE CELLSPACING=
1>
180 <TR><TD>
181 <TR><TD COLSPAN=
2><b>Running a simulation
</b>
182 <TR><TD><A HREF=
"online/grompp.html">grompp
</A></TD><TD>makes a run input file
</TD>
183 <TR><TD><A HREF=
"online/tpbconv.html">tpbconv
</A></TD><TD>makes a run input file for restarting a crashed run
</TD>
184 <TR><TD><A HREF=
"online/mdrun.html">mdrun
</A></TD><TD>performs a simulation
</TD>
188 <TABLE CELLSPACING=
1>
189 <TR><TD>
190 <TR><TD COLSPAN=
2><b>Viewing trajectories
</b>
191 <TR><TD><A HREF=
"online/ngmx.html">ngmx
</A></TD><TD>displays a trajectory
</TD>
192 <TR><TD><A HREF=
"online/trjconv.html">trjconv
</A></TD><TD>converts trajectories to e.g. pdb which can be viewed with e.g. rasmol
</TD>
196 <TABLE CELLSPACING=
1>
197 <TR><TD>
198 <TR><TD COLSPAN=
2><b>Processing energies
</b>
199 <TR><TD><A HREF=
"online/g_energy.html">g_energy
</A></TD><TD>writes energies to xvg files and displays averages
</TD>
200 <TR><TD><A HREF=
"online/g_enemat.html">g_enemat
</A></TD><TD>extracts an energy matrix from an energy file
</TD>
201 <TR><TD><A HREF=
"online/mdrun.html">mdrun
</A></TD><TD>with -rerun (re)calculates energies for trajectory frames
</TD>
205 <TABLE CELLSPACING=
1>
206 <TR><TD>
207 <TR><TD COLSPAN=
2><b>Converting files
</b>
208 <TR><TD><A HREF=
"online/editconf.html">editconf
</A></TD><TD>converts and manipulates structure files
</TD>
209 <TR><TD><A HREF=
"online/trjconv.html">trjconv
</A></TD><TD>converts and manipulates trajectory files
</TD>
210 <TR><TD><A HREF=
"online/trjcat.html">trjcat
</A></TD><TD>concatenates trajectory files
</TD>
211 <TR><TD><A HREF=
"online/eneconv.html">eneconv
</A></TD><TD>converts energy files
</TD>
212 <TR><TD><A HREF=
"online/xmp2ps.html">xmp2ps
</A></TD><TD>converts XPM matrices to encapsulated postscript (or XPM)
</TD>
216 <TABLE CELLSPACING=
1>
217 <TR><TD>
218 <TR><TD COLSPAN=
2><b>Tools
</b>
219 <TR><TD><A HREF=
"online/make_ndx.html">make_ndx
</A></TD><TD>makes index files
</TD>
220 <TR><TD><A HREF=
"online/mk_angndx.html">mk_angndx
</A></TD><TD>generates index files for g_angle
</TD>
221 <TR><TD><A HREF=
"online/gmxcheck.html">gmxcheck
</A></TD><TD>checks and compares files
</TD>
222 <TR><TD><A HREF=
"online/gmxdump.html">gmxdump
</A></TD><TD>makes binary files human readable
</TD>
223 <TR><TD><A HREF=
"online/g_traj.html">g_traj
</A></TD><TD>plots x, v and f of selected atoms/groups (and more) from a trajectory
</TD>
224 <TR><TD><A HREF=
"online/g_analyze.html">g_analyze
</A></TD><TD>analyzes data sets
</TD>
225 <TR><TD><A HREF=
"online/trjorder.html">trjorder
</A></TD><TD>orders molecules according to their distance to a group
</TD>
226 <TR><TD><A HREF=
"online/g_filter.html">g_filter
</A></TD><TD>frequency filters trajectories, useful for making smooth movies
</TD>
227 <TR><TD><A HREF=
"online/g_lie.html">g_lie
</A></TD><TD>free energy estimate from linear combinations
</TD>
228 <TR><TD><A HREF=
"online/g_dyndom.html">g_dyndom
</A></TD><TD>interpolate and extrapolate structure rotations
</TD>
229 <TR><TD><A HREF=
"online/g_morph.html">g_morph
</A></TD><TD>linear interpolation of conformations
</TD>
230 <TR><TD><A HREF=
"online/g_wham.html">g_wham
</A></TD><TD>weighted histogram analysis after umbrella sampling
</TD>
231 <TR><TD><A HREF=
"online/ffscan.html">ffscan
</A></TD><TD>scan and modify force field data for a single point energy calculation
</TD>
232 <TR><TD><A HREF=
"online/xpm2ps.html">xpm2ps
</A></TD><TD>convert XPM (XPixelMap) file to postscript
</TD>
236 <TABLE CELLSPACING=
1>
237 <TR><TD>
238 <TR><TD COLSPAN=
2><b>Distances between structures
</b>
239 <TR><TD><A HREF=
"online/g_rms.html">g_rms
</A></TD><TD>calculates rmsd's with a reference structure and rmsd matrices
</TD>
240 <TR><TD><A HREF=
"online/g_confrms.html">g_confrms
</A></TD><TD>fits two structures and calculates the rmsd
</TD>
241 <TR><TD><A HREF=
"online/g_cluster.html">g_cluster
</A></TD><TD>clusters structures
</TD>
242 <TR><TD><A HREF=
"online/g_rmsf.html">g_rmsf
</A></TD><TD>calculates atomic fluctuations
</TD>
243 <TR><TD><A HREF=
"online/disco.html">disco
</A></TD><TD>distance geometry calculation with the CONCOORD algorithm
</TD>
244 <TR><TD><A HREF=
"online/cdist.html">cdist
</A></TD><TD>create input for disco
</TD>
248 <TABLE CELLSPACING=
1>
249 <TR><TD>
250 <TR><TD COLSPAN=
2><b>Distances in structures over time
</b>
251 <TR><TD><A HREF=
"online/g_mindist.html">g_mindist
</A></TD><TD>calculates the minimum distance between two groups
</TD>
252 <TR><TD><A HREF=
"online/g_dist.html">g_dist
</A></TD><TD>calculates the distances between the centers of mass of two groups
</TD>
253 <TR><TD><A HREF=
"online/g_bond.html">g_bond
</A></TD><TD>calculates distances between atoms
</TD>
254 <TR><TD><A HREF=
"online/g_mdmat.html">g_mdmat
</A></TD><TD>calculates residue contact maps
</TD>
255 <TR><TD><A HREF=
"online/g_polystat.html">g_polystat
</A></TD><TD>calculates static properties of polymers
</TD>
256 <TR><TD><A HREF=
"online/g_rmsdist.html">g_rmsdist
</A></TD><TD>calculates atom pair distances averaged with power
2, -
3 or -
6</TD>
260 <TABLE CELLSPACING=
1>
261 <TR><TD>
262 <TR><TD COLSPAN=
2><b>Mass distribution properties over time
</b>
263 <TR><TD><A HREF=
"online/g_traj.html">g_traj
</A></TD><TD>plots x, v, f, box, temperature and rotational energy
</TD>
264 <TR><TD><A HREF=
"online/g_gyrate.html">g_gyrate
</A></TD><TD>calculates the radius of gyration
</TD>
265 <TR><TD><A HREF=
"online/g_msd.html">g_msd
</A></TD><TD>calculates mean square displacements
</TD>
266 <TR><TD><A HREF=
"online/g_polystat.html">g_polystat
</A></TD><TD>calculates static properties of polymers
</TD>
267 <TR><TD><A HREF=
"online/g_rotacf.html">g_rotacf
</A></TD><TD>calculates the rotational correlation function for molecules
</TD>
268 <TR><TD><A HREF=
"online/g_vanhove.html">g_vanhove
</A></TD><TD>calculates Van Hove displacement functions
</TD>
272 <TABLE CELLSPACING=
1>
273 <TR><TD>
274 <TR><TD COLSPAN=
2><b>Analyzing bonded interactions
</b>
275 <TR><TD><A HREF=
"online/g_bond.html">g_bond
</A></TD><TD>calculates bond length distributions
</TD>
276 <TR><TD><A HREF=
"online/mk_angndx.html">mk_angndx
</A></TD><TD>generates index files for g_angle
</TD>
277 <TR><TD><A HREF=
"online/g_angle.html">g_angle
</A></TD><TD>calculates distributions and correlations for angles and dihedrals
</TD>
278 <TR><TD><A HREF=
"online/g_dih.html">g_dih
</A></TD><TD>analyzes dihedral transitions
</TD>
282 <TABLE CELLSPACING=
1>
283 <TR><TD>
284 <TR><TD COLSPAN=
2><b>Structural properties
</b>
285 <TR><TD><A HREF=
"online/g_hbond.html">g_hbond
</A></TD><TD>computes and analyzes hydrogen bonds
</TD>
286 <TR><TD><A HREF=
"online/g_saltbr.html">g_saltbr
</A></TD><TD>computes salt bridges
</TD>
287 <TR><TD><A HREF=
"online/g_sas.html">g_sas
</A></TD><TD>computes solvent accessible surface area
</TD>
288 <TR><TD><A HREF=
"online/g_order.html">g_order
</A></TD><TD>computes the order parameter per atom for carbon tails
</TD>
289 <TR><TD><A HREF=
"online/g_principal.html">g_principal
</A></TD><TD>calculates axes of inertia for a group of atoms
</TD>
290 <TR><TD><A HREF=
"online/g_rdf.html">g_rdf
</A></TD><TD>calculates radial distribution functions
</TD>
291 <TR><TD><A HREF=
"online/g_sdf.html">g_sdf
</A></TD><TD>calculates solvent distribution functions
</TD>
292 <TR><TD><A HREF=
"online/g_sgangle.html">g_sgangle
</A></TD><TD>computes the angle and distance between two groups
</TD>
293 <TR><TD><A HREF=
"online/g_sorient.html">g_sorient
</A></TD><TD>analyzes solvent orientation around solutes
</TD>
294 <TR><TD><A HREF=
"online/g_spol.html">g_spol
</A></TD><TD>analyzes solvent dipole orientation and polarization around solutes
</TD>
295 <TR><TD><A HREF=
"online/g_bundle.html">g_bundle
</A></TD><TD>analyzes bundles of axes, e.g. helices
</TD>
296 <TR><TD><A HREF=
"online/g_disre.html">g_disre
</A></TD><TD>analyzes distance restraints
</TD>
297 <TR><TD><A HREF=
"online/g_clustsize.html">g_clustsize
</A></TD><TD>calculate size distributions of atomic clusters
</TD>
298 <TR><TD><A HREF=
"online/disco.html">disco
</A></TD><TD>distance geometry calculation with the CONCOORD algorithm
</TD>
299 <TR><TD><A HREF=
"online/cdist.html">cdist
</A></TD><TD>create input for disco
</TD>
300 <TR><TD><A HREF=
"online/anadock.html">anadock
</A></TD><TD>cluster structures from Autodock runs
</TD>
304 <TABLE CELLSPACING=
1>
305 <TR><TD>
306 <TR><TD COLSPAN=
2><b>Kinetic properties
</b>
307 <TR><TD><A HREF=
"online/g_traj.html">g_traj
</A></TD><TD>plots x, v, f, box, temperature and rotational energy
</TD>
308 <TR><TD><A HREF=
"online/g_velacc.html">g_velacc
</A></TD><TD>calculates velocity autocorrelation functions
</TD>
309 <TR><TD><A HREF=
"online/g_tcaf.html">g_tcaf
</A></TD><TD>calculates viscosities of liquids
</TD>
310 <TR><TD><A HREF=
"online/g_kinetics.html">g_kinetics
</A></TD><TD>derives information about kinetic processes from you trajectories
</TD>
314 <TABLE CELLSPACING=
1>
315 <TR><TD>
316 <TR><TD COLSPAN=
2><b>Electrostatic properties
</b>
317 <TR><TD><A HREF=
"online/genion.html">genion
</A></TD><TD>generates mono atomic ions on energetically favorable positions
</TD>
318 <TR><TD><A HREF=
"online/g_potential.html">g_potential
</A></TD><TD>calculates the electrostatic potential across the box
</TD>
319 <TR><TD><A HREF=
"online/g_dipoles.html">g_dipoles
</A></TD><TD>computes the total dipole plus fluctuations
</TD>
320 <TR><TD><A HREF=
"online/g_dielectric.html">g_dielectric
</A></TD><TD>calculates frequency dependent dielectric constants
</TD>
321 <TR><TD><A HREF=
"online/g_current.html">g_current
</A></TD><TD>calculates dielectric constants for charged systems
</TD>
325 <TABLE CELLSPACING=
1>
326 <TR><TD>
327 <TR><TD COLSPAN=
2><b>Protein specific analysis
</b>
328 <TR><TD><A HREF=
"online/do_dssp.html">do_dssp
</A></TD><TD>assigns secondary structure and calculates solvent accessible surface area
</TD>
329 <TR><TD><A HREF=
"online/g_chi.html">g_chi
</A></TD><TD>calculates everything you want to know about chi and other dihedrals
</TD>
330 <TR><TD><A HREF=
"online/g_helix.html">g_helix
</A></TD><TD>calculates basic properties of alpha helices
</TD>
331 <TR><TD><A HREF=
"online/g_helixorient.html">g_helixorient
</A></TD><TD>calculates local pitch/bending/rotation/orientation inside helices
</TD>
332 <TR><TD><A HREF=
"online/g_rama.html">g_rama
</A></TD><TD>computes Ramachandran plots
</TD>
333 <TR><TD><A HREF=
"online/xrama.html">xrama
</A></TD><TD>shows animated Ramachandran plots
</TD>
334 <TR><TD><A HREF=
"online/wheel.html">wheel
</A></TD><TD>plots helical wheels
</TD>
338 <TABLE CELLSPACING=
1>
339 <TR><TD>
340 <TR><TD COLSPAN=
2><b>Interfaces
</b>
341 <TR><TD><A HREF=
"online/g_potential.html">g_potential
</A></TD><TD>calculates the electrostatic potential across the box
</TD>
342 <TR><TD><A HREF=
"online/g_density.html">g_density
</A></TD><TD>calculates the density of the system
</TD>
343 <TR><TD><A HREF=
"online/g_densmap.html">g_densmap
</A></TD><TD>calculates
2D planar or axial-radial density maps
</TD>
344 <TR><TD><A HREF=
"online/g_order.html">g_order
</A></TD><TD>computes the order parameter per atom for carbon tails
</TD>
345 <TR><TD><A HREF=
"online/g_h2order.html">g_h2order
</A></TD><TD>computes the orientation of water molecules
</TD>
346 <TR><TD><A HREF=
"online/g_bundle.html">g_bundle
</A></TD><TD>analyzes bundles of axes, e.g. transmembrane helices
</TD>
350 <TABLE CELLSPACING=
1>
351 <TR><TD>
352 <TR><TD COLSPAN=
2><b>Covariance analysis
</b>
353 <TR><TD><A HREF=
"online/g_covar.html">g_covar
</A></TD><TD>calculates and diagonalizes the covariance matrix
</TD>
354 <TR><TD><A HREF=
"online/g_anaeig.html">g_anaeig
</A></TD><TD>analyzes the eigenvectors
</TD>
355 <TR><TD><A HREF=
"online/make_edi.html">make_edi
</A></TD><TD>generate input files for essential dynamics sampling
</TD>
359 <TABLE CELLSPACING=
1>
360 <TR><TD>
361 <TR><TD COLSPAN=
2><b>Normal modes
</b>
362 <TR><TD><A HREF=
"online/grompp.html">grompp
</A></TD><TD>makes a run input file
</TD>
363 <TR><TD><A HREF=
"online/mdrun.html">mdrun
</A></TD><TD>finds a potential energy minimum
</TD>
364 <TR><TD><A HREF=
"online/mdrun.html">mdrun
</A></TD><TD>calculates the Hessian
</TD>
365 <TR><TD><A HREF=
"online/g_nmeig.html">g_nmeig
</A></TD><TD>diagonalizes the Hessian
</TD>
366 <TR><TD><A HREF=
"online/g_nmtraj.html">g_nmtraj
</A></TD><TD>generate oscillating trajectory of an eigenmode
</TD>
367 <TR><TD><A HREF=
"online/g_anaeig.html">g_anaeig
</A></TD><TD>analyzes the normal modes
</TD>
368 <TR><TD><A HREF=
"online/g_nmens.html">g_nmens
</A></TD><TD>generates an ensemble of structures from the normal modes
</TD>
373 <font size=
"-1"><a href=
"http://www.gromacs.org">http://www.gromacs.org
</a></font><br>