'></a>Error variance</h3>


<p>The variance of the error components are specified via the <code>var_add=</code>
and <code>var_prop=</code> arguments of the function.</p>

    <h2 class="hasAnchor" id="see-also"><a class="anchor" href="#see-also"></a>See also</h2>

    <div class='dont-index'><p>Other observation models: 
<code><a href='obs_additive.html'>obs_additive</a>()</code>,
<code><a href='obs_proportional.html'>obs_proportional</a>()</code></p></div>

    <h2 class="hasAnchor" id="examples"><a class=