package com.mypackage
import org.apache.spark.graphx._
import org.apache.spark.{SparkContext, SparkConf}
/**
* Created by sidazhang on 11/8/16.
*/
case class Person(age: Int)
case cl
我想使用Scala和GraphX計算源節點和目標節點之間的最短距離。但下面的代碼給了我所有節點之間的最短距離。 val sourceId: VertexId = 37
val g = graph.mapVertices((id, _) =>
if (id == sourceId) 0.0
else Double.PositiveInfinity
)