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Posted to dev@flink.apache.org by "Christoph Alt (JIRA)" <ji...@apache.org> on 2015/06/26 12:03:04 UTC

[jira] [Created] (FLINK-2278) SparseVector created from Breeze Sparsevector has wrong size

Christoph Alt created FLINK-2278:
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             Summary: SparseVector created from Breeze Sparsevector has wrong size
                 Key: FLINK-2278
                 URL: https://issues.apache.org/jira/browse/FLINK-2278
             Project: Flink
          Issue Type: Bug
            Reporter: Christoph Alt


The following code doesn't return true when testing equality of two SparseVectors, one converted from a Breeze SparseVector.

`
val flinkVector = SparseVector.fromCOO(3, (1, 1.0), (2, 2.0))
val breezeVector = linalg.SparseVector(3)(1 -> 1.0, 2 -> 2.0)

flinkVector.equalsVector(breezeVector.fromBreeze)
`

The reason is that *fromBreeze* takes the number of non-zero elements *SparseVector.used* as size when creating a SparseVector instead of the dimensionality *SparseVector.length*.



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