Github user ankurdave commented on a diff in the pull request:
https://github.com/apache/spark/pull/4774#discussion_r28465270
--- Diff: graphx/src/main/scala/org/apache/spark/graphx/lib/PageRank.scala
---
@@ -133,7 +167,29 @@ object PageRank extends Logging {
* containing the normalized weight.
*/
def runUntilConvergence[VD: ClassTag, ED: ClassTag](
- graph: Graph[VD, ED], tol: Double, resetProb: Double = 0.15):
Graph[Double, Double] =
+ graph: Graph[VD, ED], tol: Double, resetProb: Double = 0.15):
Graph[Double, Double] =
+ {
+ runUntilConvergenceWithOptions(graph, tol, resetProb)
+ }
+
+ /**
+ * Run a dynamic version of PageRank returning a graph with vertex
attributes containing the
+ * PageRank and edge attributes containing the normalized edge weight.
+ *
+ * @tparam VD the original vertex attribute (not used)
+ * @tparam ED the original edge attribute (not used)
+ *
+ * @param graph the graph on which to compute PageRank
+ * @param tol the tolerance allowed at convergence (smaller => more
accurate).
+ * @param resetProb the random reset probability (alpha)
+ * @param srcId the source vertex for a Personalized Page Rank (optional)
+ *
+ * @return the graph containing with each vertex containing the PageRank
and each edge
+ * containing the normalized weight.
+ */
+ def runUntilConvergenceWithOptions[VD: ClassTag, ED: ClassTag](
+ graph: Graph[VD, ED], tol: Double, resetProb: Double = 0.15,
+ srcId: Option[VertexId] = None): Graph[Double, Double] =
--- End diff --
style: inconsistent indent
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