This PR corrects a dyad indexing error in ergm_block that affected dyad sampling in directed diagonal blocks, adds a related test to confirm that all free dyads vary with a blocks constraint, and reduces the run length of some other tests to keep total test time from increasing.
This PR corrects a dyad indexing error in ergm_block that affected dyad sampling in directed diagonal blocks, adds a related test to confirm that all free dyads vary with a blocks constraint, and reduces the run length of some other tests to keep total test time from increasing.