compute connection strength</span>
0094     self = repmat(diag(norm_energy), [1,numclusts]);
0095     connect_strength = 2 .* norm_energy ./ (self + self');
0096     connect_strength = connect_strength .* (1-eye(numclusts));  <span class="comment">% diag entries &lt;- 0, so we won't agg clusters with themselves</span>
0097 
0098     <span class="comment">% Find best remaining pair</span>
0099     remaining = ((untested == 3) .* connect_strength);
0100     best = max(remaining(:));           <span class="com