Sorry for this but…before committing it to the knowledge-base, could you please proof read one more time. I think I found one error in your abbreviation of xindong…, you said XWG but lower down you refer to it as XDG. Maybe there are other typos that could lead to confusion.
I hope I understood that this is the case, if I am wrong, my sincere apologies.
Kind regards,
Kees