Yexi Jiang created HAMA-782:
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Summary: The arguments of DoubleVector.slice(int, int) method will
mislead the user
Key: HAMA-782
URL: https://issues.apache.org/jira/browse/HAMA-782
Project: Hama
Issue Type: Improvement
Components: machine learning, math
Reporter: Yexi Jiang
Assignee: Yexi Jiang
Fix For: 0.6.3
The current implementation of DoubleVector.slice(int, int) is ambiguous.
Current description of this method is as follows:
--------------------------------------------------------
Slices this vector from index offset with the given length. So you end at the
upper bound of (offset+length).
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If the given vector is vec = [0, 1, 2, 3, 4, 5, 6], and user uses vec.slice(2,
3) and hope to get [2, 3, 4]. However, it actually returns [2,3].
This is because the actual implementation extract the elements start from
'offset' and end at 'length' (exclusive). The argument name will mislead the
user.
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