   x=<a href="nt_specific.html" class="code" title="function y=nt_specific(x,w,thresh)">nt_specific</a>(<a href="nt_unfold.html" class="code" title="function x=nt_unfold(x)">nt_unfold</a>(x),w,thresh);
0018     x=<a href="nt_fold.html" class="code" title="function x=fold(x,epochsize)">nt_fold</a>(x,m);
0019     <span class="keyword">return</span>
0020 <span class="keyword">end</span>
0021 
0022 [m,n]=size(x);
0023 cc=x'*x;
0024 
0025 y=zeros(size(x));
0026 <span class="keyword">for</span> k=1:n
0027     idx