<li>add | delete (keyword) = add or delete the calculation of an equivalent continuum field for the specified per-atom compute as volume or number density quantity <br/>
</li>
<li>per-atom compute id = name/id for per-atom compute, fields can be calculated for all per-atom computes available from LAMMPS <br/>
</li>
<li>volume | number (keyword) = field created is a per-unit-volume quantity or a per-atom quantity as weighted by kernel functions <br/>
</li>
</ul>
<h2><a class="anchor" id="examples">
examples</a></h2>
<p><code> compute virial all stress/atom </code> <br/>