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<P><B>Examples:</B>
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</P>
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<PRE>compute 1 all atom/molecule c_ke c_pe
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</PRE>
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<PRE>compute 1 top atom/molecule v_myFormula c_stress<B>3</B>
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compute 1 top atom/molecule v_myFormula c_stress<B>3</B>
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</PRE>
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<P><B>Description:</B>
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</P>
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@ -54,13 +53,11 @@ they return. For example, if a compute is used as an input which
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generates a per-atom vector, it will generate values of 0.0 for atoms
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that are not in the group specified for that compute.
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</P>
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<P>The ordering of per-molecule quantities produced by this compute are
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<P>The ordering of per-molecule quantities produced by this compute is
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consistent with the ordering produced by other compute commands that
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generate per-molecule datums. Let Nmolecules be the number of
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molecules for which a result is calculated. If not all molecules have
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atoms in the group, then the molecule with the lowest ID is the first
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of the Nmolecules. The next lowest ID is the second, etc, up to
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Nmolecules.
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generate per-molecule datums. Conceptually, them molecule IDs will be
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in ascending order for any molecule with one or more of its atoms in
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the specified group.
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</P>
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<P>If an input begins with "c_", a compute ID must follow which has been
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previously defined in the input script and which generates per-atom
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@ -45,13 +45,11 @@ they return. For example, if a compute is used as an input which
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generates a per-atom vector, it will generate values of 0.0 for atoms
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that are not in the group specified for that compute.
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The ordering of per-molecule quantities produced by this compute are
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The ordering of per-molecule quantities produced by this compute is
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consistent with the ordering produced by other compute commands that
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generate per-molecule datums. Let Nmolecules be the number of
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molecules for which a result is calculated. If not all molecules have
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atoms in the group, then the molecule with the lowest ID is the first
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of the Nmolecules. The next lowest ID is the second, etc, up to
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Nmolecules.
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generate per-molecule datums. Conceptually, them molecule IDs will be
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in ascending order for any molecule with one or more of its atoms in
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the specified group.
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If an input begins with "c_", a compute ID must follow which has been
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previously defined in the input script and which generates per-atom
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@ -35,10 +35,11 @@ however this is not required. LAMMPS will warn you if this is not the
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case. Only atoms in the group contribute to the center-of-mass
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calculation for the molecule.
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</P>
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<P>Let Nmolecules be the number of molecules for which the center-of-mass
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is calculated. If not all molecules have atoms in the group, then the
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molecule with the lowest ID is the first of the Nmolecules. The next
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lowest ID is the second, etc, up to Nmolecules.
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<P>The ordering of per-molecule quantities produced by this compute is
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consistent with the ordering produced by other compute commands that
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generate per-molecule datums. Conceptually, them molecule IDs will be
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in ascending order for any molecule with one or more of its atoms in
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the specified group.
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</P>
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<P>IMPORTANT NOTE: The coordinates of an atom contribute to the
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molecule's center-of-mass in "unwrapped" form, by using the image
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@ -32,10 +32,11 @@ however this is not required. LAMMPS will warn you if this is not the
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case. Only atoms in the group contribute to the center-of-mass
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calculation for the molecule.
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Let Nmolecules be the number of molecules for which the center-of-mass
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is calculated. If not all molecules have atoms in the group, then the
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molecule with the lowest ID is the first of the Nmolecules. The next
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lowest ID is the second, etc, up to Nmolecules.
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The ordering of per-molecule quantities produced by this compute is
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consistent with the ordering produced by other compute commands that
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generate per-molecule datums. Conceptually, them molecule IDs will be
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in ascending order for any molecule with one or more of its atoms in
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the specified group.
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IMPORTANT NOTE: The coordinates of an atom contribute to the
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molecule's center-of-mass in "unwrapped" form, by using the image
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@ -43,10 +43,11 @@ should be in the group, however this is not required. LAMMPS will
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warn you if this is not the case. Only atoms in the group contribute
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to the Rg calculation for the molecule.
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</P>
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<P>Let Nmolecules be the number of molecules for which Rg is calculated.
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If not all molecules have atoms in the group, then the molecule with
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the lowest ID is the first of the Nmolecules. The next lowest ID is
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the second, etc, up to Nmolecules.
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<P>The ordering of per-molecule quantities produced by this compute is
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consistent with the ordering produced by other compute commands that
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generate per-molecule datums. Conceptually, them molecule IDs will be
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in ascending order for any molecule with one or more of its atoms in
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the specified group.
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</P>
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<P>IMPORTANT NOTE: The coordinates of an atom contribute to Rg in
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"unwrapped" form, by using the image flags associated with each atom.
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@ -40,10 +40,11 @@ should be in the group, however this is not required. LAMMPS will
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warn you if this is not the case. Only atoms in the group contribute
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to the Rg calculation for the molecule.
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Let Nmolecules be the number of molecules for which Rg is calculated.
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If not all molecules have atoms in the group, then the molecule with
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the lowest ID is the first of the Nmolecules. The next lowest ID is
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the second, etc, up to Nmolecules.
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The ordering of per-molecule quantities produced by this compute is
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consistent with the ordering produced by other compute commands that
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generate per-molecule datums. Conceptually, them molecule IDs will be
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in ascending order for any molecule with one or more of its atoms in
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the specified group.
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IMPORTANT NOTE: The coordinates of an atom contribute to Rg in
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"unwrapped" form, by using the image flags associated with each atom.
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@ -47,10 +47,11 @@ will warn you if this is not the case. Only atoms in the group
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contribute to the center-of-mass calculation for the molecule, which
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is used to caculate its initial and current position.
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</P>
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<P>Let Nmolecules be the number of molecules for which the MSD is
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calculated. If not all molecules have atoms in the group, then the
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molecule with the lowest ID is the first of the Nmolecules. The next
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lowest ID is the second, etc, up to Nmolecules.
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<P>The ordering of per-molecule quantities produced by this compute is
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consistent with the ordering produced by other compute commands that
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generate per-molecule datums. Conceptually, them molecule IDs will be
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in ascending order for any molecule with one or more of its atoms in
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the specified group.
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</P>
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<P>IMPORTANT NOTE: The initial coordinates of each molecule are stored in
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"unwrapped" form, by using the image flags associated with each atom.
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@ -44,10 +44,11 @@ will warn you if this is not the case. Only atoms in the group
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contribute to the center-of-mass calculation for the molecule, which
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is used to caculate its initial and current position.
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Let Nmolecules be the number of molecules for which the MSD is
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calculated. If not all molecules have atoms in the group, then the
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molecule with the lowest ID is the first of the Nmolecules. The next
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lowest ID is the second, etc, up to Nmolecules.
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The ordering of per-molecule quantities produced by this compute is
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consistent with the ordering produced by other compute commands that
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generate per-molecule datums. Conceptually, them molecule IDs will be
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in ascending order for any molecule with one or more of its atoms in
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the specified group.
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IMPORTANT NOTE: The initial coordinates of each molecule are stored in
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"unwrapped" form, by using the image flags associated with each atom.
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@ -40,13 +40,16 @@ commands that generate per-molecule data, such as <A HREF = "compute_com_molecul
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com/molecule</A> and <A HREF = "compute_msd_molecule.html">compute
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msd/molecule</A>.
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</P>
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<P>The <I>mol</I> attribute generates a list of molecule IDs in ascending
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order for any molecule with one or more of its atoms in the specified
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group. This list and ordering of molecule IDs will be consistent with
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the ordering produced by other compute commands that generate
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per-molecule datums. Thus this attribute can be used to produce
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molecule IDs as labels for those datums when they are output to a
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file, e.g. by the <A HREF = "fix_ave_time.html">fix ave/time</A> command.
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<P>The ordering of per-molecule quantities produced by this compute is
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consistent with the ordering produced by other compute commands that
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generate per-molecule datums. Conceptually, them molecule IDs will be
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in ascending order for any molecule with one or more of its atoms in
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the specified group.
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</P>
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<P>The <I>mol</I> attribute is the molecule ID. This attribute can be used to
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produce molecule IDs as labels for per-molecule datums generated by
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other computes or fixes when they are output to a file, e.g. by the
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<A HREF = "fix_ave_time.html">fix ave/time</A> command.
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</P>
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<P>The <I>count</I> attribute is the number of atoms in the molecule.
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</P>
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@ -33,13 +33,16 @@ commands that generate per-molecule data, such as "compute
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com/molecule"_compute_com_molecule.html and "compute
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msd/molecule"_compute_msd_molecule.html.
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The {mol} attribute generates a list of molecule IDs in ascending
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order for any molecule with one or more of its atoms in the specified
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group. This list and ordering of molecule IDs will be consistent with
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the ordering produced by other compute commands that generate
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per-molecule datums. Thus this attribute can be used to produce
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molecule IDs as labels for those datums when they are output to a
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file, e.g. by the "fix ave/time"_fix_ave_time.html command.
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The ordering of per-molecule quantities produced by this compute is
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consistent with the ordering produced by other compute commands that
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generate per-molecule datums. Conceptually, them molecule IDs will be
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in ascending order for any molecule with one or more of its atoms in
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the specified group.
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The {mol} attribute is the molecule ID. This attribute can be used to
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produce molecule IDs as labels for per-molecule datums generated by
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other computes or fixes when they are output to a file, e.g. by the
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"fix ave/time"_fix_ave_time.html command.
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The {count} attribute is the number of atoms in the molecule.
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