n class="op">(</span><span class="cn">NA</span>, <span class="cn">NA</span>, <span class="fl">3</span>, <span class="fl">4</span>, <span class="fl">5</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu">coalesce</span><span class="op">(</span><span class="va">y</span>, <span class="va">z</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1] 1 2 3 4 5</span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><