RE: Get all vertexes with outDegree equals to 0 with GraphX

Perhaps, the documentation of the filter method would help. Here is the method signature (copied from the API doc) def filter[VD2, ED2](preprocess: (Graph[VD, ED]) => Graph[VD2, ED2], epred: (EdgeTriplet[VD2, ED2]) => Boolean = (x: EdgeTriplet[VD2, ED2]) => true, vpred: (VertexId, VD2) =>

Re: Get all vertexes with outDegree equals to 0 with GraphX

Thank you, I have to think what the code does,, because I am a little noob in scala and it's hard to understand it to me. 2016-02-27 3:53 GMT+01:00 Mohammed Guller : > Here is another solution (minGraph is the graph from your code. I assume > that is your original graph):

RE: Get all vertexes with outDegree equals to 0 with GraphX

Here is another solution (minGraph is the graph from your code. I assume that is your original graph): val graphWithNoOutEdges = minGraph.filter( graph => graph.outerJoinVertices(graph.outDegrees) {(vId, vData, outDegreesOpt) => outDegreesOpt.getOrElse(0)}, vpred = (vId: VertexId,

Re: Get all vertexes with outDegree equals to 0 with GraphX

Yes, I am not really happy with that "collect". I was taking a look to use subgraph method and others options and didn't figure out anything easy or direct.. I'm going to try your idea. 2016-02-26 14:16 GMT+01:00 Robin East : > Whilst I can think of other ways to do it I

Re: Get all vertexes with outDegree equals to 0 with GraphX

Whilst I can think of other ways to do it I don’t think they would be conceptually or syntactically any simpler. GraphX doesn’t have the concept of built-in vertex properties which would make this simpler - a vertex in GraphX is a Vertex ID (Long) and a bunch of custom attributes that you

Get all vertexes with outDegree equals to 0 with GraphX

I'm new with graphX. I need to get the vertex without out edges.. I guess that it's pretty easy but I did it pretty complicated.. and inefficienct val vertices: RDD[(VertexId, (List[String], List[String]))] = sc.parallelize(Array((1L, (List("a"), List[String]())), (2L, (List("b"),