Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/20257#discussion_r161644962 --- Diff: examples/src/main/scala/org/apache/spark/examples/ml/OneHotEncoderEstimatorExample.scala --- @@ -0,0 +1,67 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +// scalastyle:off println +package org.apache.spark.examples.ml + +// $example on$ +import org.apache.spark.ml.feature.{OneHotEncoderEstimator, StringIndexer} +// $example off$ +import org.apache.spark.sql.SparkSession + +object OneHotEncoderEstimatorExample { + def main(args: Array[String]): Unit = { + val spark = SparkSession + .builder + .appName("OneHotEncoderEstimatorExample") + .getOrCreate() + + // $example on$ + val df = spark.createDataFrame(Seq( --- End diff -- Ok for me. As an example, it seems a bit lengthy because the two `StringIndexer`.
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