// Log.writeInfo("IGUB:hc="+hc);
double hhc = 0;
// traverse all header links for the beginning of this pattern item
// and calculate the support
FPTreeHeader header = t.getHeader();
FPTree tree = header.getHeaderNodeLink().get(i.getItemName());
List<FPTree> nodeLinks = tree.getNodeLinks();
nodeLinks.add(0, tree);
float patSup = 0;
for(FPTree fptree : nodeLinks){
patSup += new Float(getPatternSupport(fptree).intValue()).floatValue();