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https://issues.apache.org/jira/browse/HIVEMALL-171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16937598#comment-16937598
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ASF GitHub Bot commented on HIVEMALL-171:
-----------------------------------------
myui commented on pull request #199: [WIP][HIVEMALL-171] Tracing functionality
for prediction of DecisionTrees
URL: https://github.com/apache/incubator-hivemall/pull/199
## What changes were proposed in this pull request?
Introduce `decision_path` UDF providing tracing of decision tree prediction
paths
## What type of PR is it?
Feature
## What is the Jira issue?
https://issues.apache.org/jira/browse/HIVEMALL-171
## How was this patch tested?
unit tests, manual tests on EMR
## How to use this feature?
to be described in the user guide
## Checklist
- [ ] Did you apply source code formatter, i.e., `./bin/format_code.sh`, for
your commit?
- [ ] Did you run system tests on Hive (or Spark)?
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> Tracing functionality for prediction of DecisionTrees
> -----------------------------------------------------
>
> Key: HIVEMALL-171
> URL: https://issues.apache.org/jira/browse/HIVEMALL-171
> Project: Hivemall
> Issue Type: Wish
> Reporter: Makoto Yui
> Assignee: Makoto Yui
> Priority: Major
> Fix For: 0.6.0
>
> Attachments: iris_trace.png
>
>
> It would be useful if users can find why this label is predicted for
> RandomForest?
> So, add tracing functionality of visited Nodes in the DecisionTree prediction
> logic.
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