gt;                                &lt;NA&gt;     &lt;NA&gt;    1
#&gt; 499: cfInteractive     &lt;NA&gt; joba17949c0e00e62405c8465e973297f1c     &lt;NA&gt;    1
#&gt; 500:          &lt;NA&gt;     &lt;NA&gt;                                &lt;NA&gt;     &lt;NA&gt;    1</div><div class='input'><span class='fu'><a href='JoinTables.html'>rjoin</a></span><span class='op'>(</span><span class='fu'><a href='JoinTables.html'>sjoin</a></span><span class='op'>(</span><span class='va'>tab</span>, <span class='va'>ids<