Allow FileDataModel to transpose users and items
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Key: MAHOUT-135
URL: https://issues.apache.org/jira/browse/MAHOUT-135
Project: Mahout
Issue Type: Improvement
Components: Collaborative Filtering
Reporter: Grant Ingersoll
Assignee: Grant Ingersoll
Priority: Minor
Fix For: 0.2
Sometimes it would be nice to flip around users and items in the FileDataModel.
This patch adds a transpose boolean that flips userId and itemId in the
processLine method.
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