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GMX-MK_ANGNDX(1)		     GROMACS			GMX-MK_ANGNDX(1)

NAME
     gmx-mk_angndx - Generate index files for 'gmx angle'

SYNOPSIS
	gmx mk_angndx [-s [<.tpr>]] [-n [<.ndx>]] [-type <enum>] [-[no]hyd]
		     [-hq <real>]

DESCRIPTION
     gmx  mk_angndx  makes  an index file for calculation of angle distributions
     etc. It uses a run input file (.tpx) for the definitions of the angles, di-
     hedrals etc.

OPTIONS
     Options to specify input files:

     -s [<.tpr>] (topol.tpr)
	    Portable xdr run input file

     Options to specify output files:

     -n [<.ndx>] (angle.ndx)
	    Index file

     Other options:

     -type <enum> (angle)
	    Type of angle: angle, dihedral, improper, ryckaert-bellemans

     -[no]hyd (yes)
	    Include angles with atoms with mass < 1.5

     -hq <real> (-1)
	    Ignore angles with atoms with mass <  1.5  and  magnitude  of  their
	    charge less than this value

SEE ALSO
     gmx(1)

     More information about GROMACS is available at <http://www.gromacs.org/>.

COPYRIGHT
     2026, GROMACS development team

2026.3				  Jun 25, 2026			GMX-MK_ANGNDX(1)

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