yuhao yang created SPARK-7983:
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Summary: Add require for one-based indices in loadLibSVMFile
Key: SPARK-7983
URL: https://issues.apache.org/jira/browse/SPARK-7983
Project: Spark
Issue Type: Improvement
Components: MLlib
Reporter: yuhao yang
Priority: Trivial
Add require for one-based indices in loadLibSVMFile
Customers frequently use zero-based indices in their LIBSVM files. No warnings
or errors from Spark will be reported during their computation afterwards, and
usually it will lead to wired result for many algorithms (like GBDT).
add a quick check.
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