// Load and initialize the graph
val graph = Graph.load(’hdfs://webgraph.tsv’)

// Initialize the graph for dynamic PageRank by
// storing the degree and the old and new PageRank
var prGraph = graph.updateV(graph.degrees(OutEdges),
        (v,deg) => (v.id, (deg, 1.0, 1.0))

// Execute PageRank
prGraph = PowerGraph(prGraph,
                     gatherf = e => e.src.rank / e.src.deg,
                     sumf = (a,b) => a + b,
                     applyf = // Update rank and save previous rank
                        (v, a) => (v.deg, 0.15 + 0.85*a, v.rank)
                    scatterf = // Activate neighbors on big change
                        e => abs(e.src.rank - e.srd.oldRank) > eps,
                    10) // Run 10 iterations

// Display the maximum PageRank
print(prGraph.vertices.map(v=>v.rank).max)