[SPARK-32428] [EXAMPLES] Make BinaryClassificationMetricsExample cons…

examples/src/main/scala/org/apache/spark/examples/mllib/BinaryClassificationMetricsExample.scala

@@ -59,13 +59,13 @@ object BinaryClassificationMetricsExample {
 
     // Precision by threshold
     val precision = metrics.precisionByThreshold
-    precision.foreach { case (t, p) =>
+    precision.collect.foreach { case (t, p) =>
       println(s"Threshold: $t, Precision: $p")
     }
 
     // Recall by threshold
     val recall = metrics.recallByThreshold
-    recall.foreach { case (t, r) =>
+    recall.collect.foreach { case (t, r) =>
       println(s"Threshold: $t, Recall: $r")
     }
 
@@ -74,13 +74,13 @@ object BinaryClassificationMetricsExample {
 
     // F-measure
     val f1Score = metrics.fMeasureByThreshold
-    f1Score.foreach { case (t, f) =>
+    f1Score.collect.foreach { case (t, f) =>
       println(s"Threshold: $t, F-score: $f, Beta = 1")
     }
 
     val beta = 0.5
     val fScore = metrics.fMeasureByThreshold(beta)
-    f1Score.foreach { case (t, f) =>
+    fScore.collect.foreach { case (t, f) =>
       println(s"Threshold: $t, F-score: $f, Beta = 0.5")
     }
 

examples/src/main/scala/org/apache/spark/examples/mllib/ChiSqSelectorExample.scala

@@ -53,7 +53,7 @@ object ChiSqSelectorExample {
     // $example off$
 
     println("filtered data: ")
-    filteredData.foreach(x => println(x))
+    filteredData.collect.foreach(x => println(x))
 
     sc.stop()
   }

examples/src/main/scala/org/apache/spark/examples/mllib/ElementwiseProductExample.scala

@@ -45,10 +45,10 @@ object ElementwiseProductExample {
     // $example off$
 
     println("transformedData: ")
-    transformedData.foreach(x => println(x))
+    transformedData.collect.foreach(x => println(x))
 
     println("transformedData2: ")
-    transformedData2.foreach(x => println(x))
+    transformedData2.collect.foreach(x => println(x))
 
     sc.stop()
   }

examples/src/main/scala/org/apache/spark/examples/mllib/NormalizerExample.scala

@@ -46,10 +46,10 @@ object NormalizerExample {
     // $example off$
 
     println("data1: ")
-    data1.foreach(x => println(x))
+    data1.collect.foreach(x => println(x))
 
     println("data2: ")
-    data2.foreach(x => println(x))
+    data2.collect.foreach(x => println(x))
 
     sc.stop()
   }

examples/src/main/scala/org/apache/spark/examples/mllib/StandardScalerExample.scala

@@ -49,10 +49,10 @@ object StandardScalerExample {
     // $example off$
 
     println("data1: ")
-    data1.foreach(x => println(x))
+    data1.collect.foreach(x => println(x))
 
     println("data2: ")
-    data2.foreach(x => println(x))
+    data2.collect.foreach(x => println(x))
 
     sc.stop()
   }

examples/src/main/scala/org/apache/spark/examples/mllib/TFIDFExample.scala

@@ -55,10 +55,10 @@ object TFIDFExample {
     // $example off$
 
     println("tfidf: ")
-    tfidf.foreach(x => println(x))
+    tfidf.collect.foreach(x => println(x))
 
     println("tfidfIgnore: ")
-    tfidfIgnore.foreach(x => println(x))
+    tfidfIgnore.collect.foreach(x => println(x))
 
     sc.stop()
   }