"%+%" function returning NULL : <p>I am trying to use %+% to concatenate. I am trying the following:</p>

<pre><code>&gt;nrow(myData)
1200
&gt; a = "ORG_" %+% 1:nrow(myData)
</code></pre>

<p>I expect the results to be like:</p>

<pre><code>ORG_1
ORG_2
ORG_3
.
.
.
ORG_1200
</code></pre>

<p>But, I am getting:</p>

<pre><code>&gt; a
NULL
</code></pre>

<p>Please help.</p>
