pan class="va">data</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># S4 method for class 'ConservationProblem,ANY,matrix'</span></span>
<span><span class="fu">add_feature_contiguity_constraints</span><span class="op">(</span><span class="va">x</span>, <span class="va">zones</span>, <span class="va">data</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># S4 method for class 'ConservationProblem,ANY,ANY'</span></span>
<span><span class="fu">add_feature_c