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prefixed_hash_values(array values, string prefix [, boolean useIndexAsPrefix]) returns array that each element has the specified prefix

Platforms: WhereOS, Spark, Hive
Class: hivemall.ftvec.hashing.ArrayPrefixedHashValuesUDF

More functions can be added to WhereOS via Python or R bindings or as Java & Scala UDF (user-defined function), UDAF (user-defined aggregation function) and UDTF (user-defined table generating function) extensions. Custom libraries can be added on via Settings-page or installed from WhereOS Store.

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