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https://issues.apache.org/jira/browse/MAHOUT-65?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12613255#action_12613255
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Karl Wettin commented on MAHOUT-65:
-----------------------------------
Late submission, but I think I'd prefer if the labels was a bit less hard bound
to vectors. And I want to associate them more than a name, at least class
values too. Perhaps something like this:
{code:java}
abstract class Labels {
double get(Vector v, String l) {
return (v.get(indexOf(l));
}
void set(Vector v, String l, double w) {
v.set(indexOf(l), w);
}
int indexOf(String);
Label getLabel(int);
Iterator<Label> iterate();
}
class Label {
String name;
enum Type { real, ordinal }
Type type;
List<String> ordinalValues;
}
{code}
> Add Element Labels to Vectors and Matrices
> ------------------------------------------
>
> Key: MAHOUT-65
> URL: https://issues.apache.org/jira/browse/MAHOUT-65
> Project: Mahout
> Issue Type: New Feature
> Components: Matrix
> Reporter: Jeff Eastman
> Attachments: MAHOUT-65.patch
>
>
> Many applications can benefit by accessing elements in vectors and matrices
> using String labels in addition to numeric indices. Investigate adding such a
> capability.
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