public double getStatistic(NetworkData nd) { double sum = 0.0; int relCt = nd.getRelationCount(); for (int ri = 0; ri < relCt; ri++) { switch (params.type) { case TYPE_EXPANSIVENESS: sum += nd.getOutDegreeCentrality(ri, actorIdx); break; case TYPE_ATTRACTIVENESS: sum += nd.getInDegreeCentrality(ri, actorIdx); break; default: sum = Double.NaN; } } return sum; }