org.apache.spark.graphx.util

GraphGenerators

object GraphGenerators

A collection of graph generating functions.

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  6. val RMATa: Double

  7. val RMATb: Double

  8. val RMATc: Double

  9. val RMATd: Double

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  15. def generateRandomEdges(src: Int, numEdges: Int, maxVertexId: Int): Array[Edge[Int]]

  16. final def getClass(): Class[_]

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  17. def gridGraph(sc: SparkContext, rows: Int, cols: Int): Graph[(Int, Int), Double]

    Create rows by cols grid graph with each vertex connected to its row+1 and col+1 neighbors.

    Create rows by cols grid graph with each vertex connected to its row+1 and col+1 neighbors. Vertex ids are assigned in row major order.

    sc

    the spark context in which to construct the graph

    rows

    the number of rows

    cols

    the number of columns

    returns

    A graph containing vertices with the row and column ids as their attributes and edge values as 1.0.

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  19. final def isInstanceOf[T0]: Boolean

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  20. def logNormalGraph(sc: SparkContext, numVertices: Int): Graph[Int, Int]

    Generate a graph whose vertex out degree is log normal.

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  24. def rmatGraph(sc: SparkContext, requestedNumVertices: Int, numEdges: Int): Graph[Int, Int]

    A random graph generator using the R-MAT model, proposed in "R-MAT: A Recursive Model for Graph Mining" by Chakrabarti et al.

    A random graph generator using the R-MAT model, proposed in "R-MAT: A Recursive Model for Graph Mining" by Chakrabarti et al.

    See http://www.cs.cmu.edu/~christos/PUBLICATIONS/siam04.pdf.

  25. def starGraph(sc: SparkContext, nverts: Int): Graph[Int, Int]

    Create a star graph with vertex 0 being the center.

    Create a star graph with vertex 0 being the center.

    sc

    the spark context in which to construct the graph

    nverts

    the number of vertices in the star

    returns

    A star graph containing nverts vertices with vertex 0 being the center vertex.

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