Github user MLnick commented on a diff in the pull request:
https://github.com/apache/spark/pull/12920#discussion_r62741242
--- Diff:
examples/src/main/java/org/apache/spark/examples/ml/JavaOneVsRestExample.java
---
@@ -17,222 +17,69 @@
package org.apache.spark.examples.ml;
-import org.apache.commons.cli.*;
-
// $example on$
import org.apache.spark.ml.classification.LogisticRegression;
import org.apache.spark.ml.classification.OneVsRest;
import org.apache.spark.ml.classification.OneVsRestModel;
-import org.apache.spark.ml.util.MetadataUtils;
-import org.apache.spark.mllib.evaluation.MulticlassMetrics;
+import org.apache.spark.ml.evaluation.MulticlassClassificationEvaluator;
import org.apache.spark.mllib.linalg.Matrix;
-import org.apache.spark.mllib.linalg.Vector;
import org.apache.spark.sql.Dataset;
import org.apache.spark.sql.Row;
-import org.apache.spark.sql.SparkSession;
-import org.apache.spark.sql.types.StructField;
// $example off$
+import org.apache.spark.sql.SparkSession;
+
/**
* An example runner for Multiclass to Binary Reduction with One Vs Rest.
--- End diff --
you can remove "runner" in this doc string (in this example and the others)
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