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From "Paritosh Ranjan (JIRA)" <>
Subject [jira] [Commented] (MAHOUT-1091) Bug in SequentialAccessSparseVector full iteration
Date Tue, 09 Oct 2012 18:34:02 GMT


Paritosh Ranjan commented on MAHOUT-1091:

Yes, got the error. The test case is failing now. The way I was creating the SequentialAccessSparseVector
was faulty, as I was not using the cardinality and size of the vector properly.

Thanks for clearing the doubts.
> Bug in SequentialAccessSparseVector full iteration
> --------------------------------------------------
>                 Key: MAHOUT-1091
>                 URL:
>             Project: Mahout
>          Issue Type: Bug
>          Components: Math
>            Reporter: Ted Dunning
>             Fix For: 0.8
>         Attachments: 0001-MAHOUT-1091-Add-test-to-demonstrate-broken-iterator-.patch,
0001-MAHOUT-1091-Add-test-to-demonstrate-broken-iterator-.patch, MAHOUT-1091.patch
> The iterator for the SequentialAccessSparseVector doesn't return any items beyond the
last non-zero.  This breaks some stuff pretty massively, but hopefully doesn't break much
user code since iterating through all elements of a sparse vector is a relatively rare thing
to do.

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