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https://issues.apache.org/jira/browse/MAHOUT-161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12740821#action_12740821
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David Hall commented on MAHOUT-161:
-----------------------------------
normalize(power) returns this.divide(norm(power)).
norm(p) == ||v||_p,
normalize(p) == v / ||v||_p
norm(p) is useful to check if a vector is sufficiently close to 0, e.g. if the
difference between two phases of an optimization is close enough to convergence.
> Add Vector.norm to compute k-norms of vectors
> ---------------------------------------------
>
> Key: MAHOUT-161
> URL: https://issues.apache.org/jira/browse/MAHOUT-161
> Project: Mahout
> Issue Type: Improvement
> Components: Matrix
> Affects Versions: 0.2
> Reporter: David Hall
> Fix For: 0.2
>
> Attachments: MAHOUT-161
>
>
> This patch adds Vector.norm(double power) to Vector (and an implementation to
> AbstractVector).
> AbstractVector.normalize now calls norm.
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