e contiguous units</span></span></span>
<span class="r-in"><span><span class="va">p6</span> <span class="op">&lt;-</span> <span class="va">p5</span> <span class="op"><a href="https://magrittr.tidyverse.org/reference/pipe.html" class="external-link">%&gt;%</a></span> <span class="fu">add_feature_contiguity_constraints</span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/diag.html" class="external-link">diag</a></span><span class="op">(</span><span class="fl">3</span><span class="op