 class="co"># Append pipeline</span></span></span>
<span class="r-in"><span><span class="va">p1</span> <span class="op">&lt;-</span> <span class="fu"><a href="pipe_new.html">pipe_new</a></span><span class="op">(</span><span class="st">"pipe1"</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="pipe_add.html">pipe_add</a></span><span class="op">(</span><span class="va">p1</span>, <span class="st">"step1"</span>, \<span class="op">(</span><span class="va">x</span> 