Picking one among many (tied) connected sets

[economoser]

I noticed that sometimes (at least in small, simulated data) there are multiple connected sets of equal size, which causes an error in the following line of the file pruning_unbalanced_v3.m:

firmlst=find(sindex==idx); %firms in connected set

I believe one (arbitrary) solution is to add the following line just before that quoted above:

idx=idx(1); % pick an arbitrary connected set among all tied largest connected sets

I believe the same issue applies to the connected set computed in connected_set.m.

Thanks again for the excellent work! :)