public void nestedDistanceMatrixAndBinaryOp() {
DoubleArrayVector a = new DoubleArrayVector(1,2,3,4);
DoubleArrayVector b = new DoubleArrayVector(10,20,30,40,50,60,70,80);
Vector times = new R$primitive$$times$deferred_dd(a, b, AttributeMap.EMPTY);
DeferredMean mean = new DeferredMean(times, AttributeMap.EMPTY);
DeferredGraph graph = new DeferredGraph(mean);
Vector x = compute(graph);
System.out.println(x);