an class="comment">%  w: weights</span>
0012 <span class="comment">%</span>
0013 <span class="comment">% Beware: mean is NOT removed prior to processing.</span>
0014 
0015 <span class="comment">% TODO: reimplement using nt_pca0</span>
0016 <a href="nt_greetings.html" class="code" title="function nt_greetings(reset)">nt_greetings</a>;
0017 
0018 <span class="keyword">if</span> nargin&lt;1; error(<span class="string">'!'</span>); <span class="keyword">end</span>
0019 <span class="keyword">if</span> nargin&lt;