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From HyukjinKwon <>
Subject [GitHub] spark pull request #18581: [SPARK-21289][SQL][ML] Supports custom line separ...
Date Mon, 10 Jul 2017 15:22:07 GMT
Github user HyukjinKwon commented on a diff in the pull request:
    --- Diff: mllib/src/main/scala/org/apache/spark/ml/source/libsvm/LibSVMOptions.scala ---
    @@ -41,11 +41,15 @@ private[libsvm] class LibSVMOptions(@transient private val parameters:
         case o => throw new IllegalArgumentException(s"Invalid value `$o` for parameter
" +
           s"`$VECTOR_TYPE`. Expected types are `sparse` and `dense`.")
    +  val lineSeparator: Option[String] = parameters.get(LINE_SEPARATOR)
    --- End diff --
    Yea, actually in case of Univocity, it requires 2 characters:
    CsvWriterSettings settings = new CsvWriterSettings();
    Exception in thread "main" java.lang.IllegalArgumentException: Invalid line separator.
Up to 2 characters are expected. Got 3 characters.
    	at com.univocity.parsers.common.Format.setLineSeparator(
    	at com.univocity.parsers.common.Format.setLineSeparator(
    I don't see a reason to restrict this for now. At least, I can provide an usecase with
Windows -`\r\n`.

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