co">## Using 'map' to fix random-effects SD to 10</span></span></span>
<span class="r-in"><span><span class="va">m1_map</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/stats/update.html" class="external-link">update</a></span><span class="op">(</span><span class="va">m1</span>, map<span class="op">=</span><span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span>theta<span class="op">=</span><span class="fu"><a 