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fix louvain's result format #2

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merged 1 commit into from
Oct 20, 2021
Merged

fix louvain's result format #2

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5 changes: 2 additions & 3 deletions nebula-algorithm/src/main/scala/com/vesoft/nebula/algorithm/lib/LouvainAlgo.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -365,9 +365,8 @@ object CommUtil {
// return the collections of communities
def getCommunities(G: Graph[VertexData, Double]): RDD[Row] = {
val communities = G.vertices
.map(x => {
Row(x._1, x._2.cId)
})
.flatMapValues(_.innerVertices)
.map(value => { Row(value._2, value._1) })
communities
}
}
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19 changes: 19 additions & 0 deletions nebula-algorithm/src/test/resources/edge_noWeight.csv
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Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
1 2
1 7
1 4
2 0
2 4
2 5
2 6
3 0
3 7
4 0
4 10
5 7
5 11
6 7
6 11
8 9
8 10
8 11
9 12
8 changes: 8 additions & 0 deletions nebula-algorithm/src/test/scala/com/vesoft/nebula/algorithm/lib/LouvainAlgoSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -18,5 +18,13 @@ class LouvainAlgoSuite {
val louvainConfig = new LouvainConfig(5, 2, 1.0)
val louvainResult = LouvainAlgo.apply(spark, data, louvainConfig, false)
assert(louvainResult.count() == 4)

val dataWithoutWith = spark.read
.option("header", false)
.option("delimiter", " ")
.csv("src/test/resources/edge_noWeight.csv")
.select("_c0", "_c1")
val louvainResult1 = LouvainAlgo.apply(spark, dataWithoutWith, louvainConfig, false)
assert(louvainResult1.count() == 13)
}
}