<span><span class="keyword">val</span> to_arrays : <span><a href="../index.html#type-t">t</a> <span class="arrow">&#45;&gt;</span></span> <span><span><a href="../index.html#type-t">t</a> array</span> array</span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-concatenate"><a href="#val-concatenate" class="anchor"></a><code><span><span class="keyword">val</span> concatenate : <span><span class="label">axis</span>:int <span class="arrow">&#45;&gt;</span></span> <span>