Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/18581#discussion_r134954909
--- 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: CaseInsen
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)
+ lineSeparator.foreach(s => require(s.nonEmpty, s"'$LINE_SEPARATOR'
cannot be an empty string."))
}
private[libsvm] object LibSVMOptions {
val NUM_FEATURES = "numFeatures"
val VECTOR_TYPE = "vectorType"
val DENSE_VECTOR_TYPE = "dense"
val SPARSE_VECTOR_TYPE = "sparse"
+ val LINE_SEPARATOR = "lineSep"
--- End diff --
I actually meant `sep` here:
https://github.com/apache/spark/blob/3c0c2d09ca89c6b6247137823169db17847dfae3/sql/core/src/main/scala/org/apache/spark/sql/DataFrameReader.scala#L488-L489
and was thinking of matching the name ..
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