 class="modifier"></span> <span class="kind">def</span></span> <span class="symbol"><span class="name" title="gt4s: $less$plus$plus$greater">&lt;++&gt;</span><span class="params">(<span name="components">components: =&gt; <a href="../scala/index.html#Vector[+A]=scala.collection.immutable.Vector[A]" name="scala.Vector" id="scala.Vector" class="extmbr">Vector</a>[<a href="Weighted.html" name="provingground.Weighted" id="provingground.Weighted" class="extype">Weighted</a>[<a href="ProbabilityDistribution.html"