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https://issues.apache.org/jira/browse/HAMA-765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13689190#comment-13689190
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Yexi Jiang commented on HAMA-765:
---------------------------------
If this one is OK, is it OK to commit the changes?
The following is the test result:
mvn -Dtest=org.apache.hama.ml.*.* test
[INFO] Reactor Summary:
[INFO]
[INFO] Apache Hama parent POM ............................ SUCCESS [1.165s]
[INFO] core .............................................. SUCCESS [3.795s]
[INFO] graph ............................................. SUCCESS [0.605s]
[INFO] machine learning .................................. SUCCESS [20.784s]
[INFO] examples .......................................... SUCCESS [0.379s]
[INFO] yarn .............................................. SUCCESS [1.694s]
[INFO] hama-dist ......................................... SUCCESS [0.009s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
> Add apply method to Vector/Matrix
> ---------------------------------
>
> Key: HAMA-765
> URL: https://issues.apache.org/jira/browse/HAMA-765
> Project: Hama
> Issue Type: Improvement
> Reporter: Yexi Jiang
> Assignee: Yexi Jiang
> Priority: Minor
> Attachments: HAMA-765.patch, HAMA-765.patch
>
>
> Add 'apply' method to Vector/Matrix to allow ad-hoc function apply to the
> elements of a Vector/Matrix.
> For example, if a function f( x ) needs to apply to the elements of a vector
> v, then we can use
> ------------
> DoubleFunction fun = new DoubleFunction() {
> public double apply(double element) {
> // do what ever
> }
> };
> v.apply(fun);
> ------------
> This method borrows the style of functional programming by allowing a
> function to apply to all the elements of a Vector/Matrix. It can simply the
> coding, especially for those algorithms where Vector/Matrix operations are
> heavily used.
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