Charlie Evans created SPARK-15922:
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Summary: BlockMatrix to IndexedRowMatrix throws an error
Key: SPARK-15922
URL: https://issues.apache.org/jira/browse/SPARK-15922
Project: Spark
Issue Type: Bug
Components: MLlib
Affects Versions: 2.0.0
Reporter: Charlie Evans
import org.apache.spark.mllib.linalg.distributed._
import org.apache.spark.mllib.linalg._
val rows = IndexedRow(0L, new DenseVector(Array(1,2,3))) :: IndexedRow(1L, new
DenseVector(Array(1,2,3))):: IndexedRow(2L, new DenseVector(Array(1,2,3))):: Nil
val rdd = sc.parallelize(rows)
val matrix = new IndexedRowMatrix(rdd, 3, 3)
val bmat = matrix.toBlockMatrix
val imat = bmat.toIndexedRowMatrix
imat.rows.collect // this throws an error - Caused by:
java.lang.IllegalArgumentException: requirement failed: Vectors must be the
same length!
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