     int&nbsp;nRow)</pre>
<div class="block">Combine the column groups A and B together.
 
 The number of rows should be equal, and it is not verified so there will be unexpected behavior in such cases.
 
 It is assumed that this method is not called with FOR groups</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>a</code> - The first group to combine.</dd>
<dd><code>b</code> - The second group to combine.</dd>
<dd><code>nRow</code> - The number of rows in the two groups.</dd>
<dt><