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From viirya <...@git.apache.org>
Subject [GitHub] spark pull request #20257: [SPARK-23048][ML] Add OneHotEncoderEstimator docu...
Date Tue, 16 Jan 2018 01:39:37 GMT
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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