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Appendix A
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transpose of forward connections) and then sort the matrix in this new ROW
and next calculate the frequency vector in the same manner as before. For
example, for site 12, we will find that backward sites for site 12 are sites 3
and 5. Hence, site number 12 is connected overall to sites number 24, 20, 14,
3, and 5. In the next step, we can apply this formula again for each of these
sites to find their connections and repeat this tracking. These sites together
are one group. At the end, if there is at least one site from right boundary in
this group, it means the sites belonging to this group are not isolated clusters;
on the other hand, they are isolated clusters and we should delete the whole
group from connection matrix.
It is worth mentioning that after construction of frequency vectors (for forward
and backward directions) no longer we need ROW in Table A.1. Also we do
not need to record entry because if we know the connection of two sites then
we can calculate the direction number according to formulas in Table (2.1) to
see which of the formulas in Table (2.1) can produce this connection.
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