huaxingao commented on issue #27570: [SPARK-30820][SPARKR][ML] Add FMClassifier to SparkR URL: https://github.com/apache/spark/pull/27570#issuecomment-594682827 LGTM @zero323 You may want to delete the dir using ```unlink(modelPath)``` after testing model save/load, and delete the extra blank line near the end of the file.
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