导入包
import org.apache.spark.sql.SparkSessionimport org.apache.spark.sql.Datasetimport org.apache.spark.sql.Rowimport org.apache.spark.sql.DataFrameimport org.apache.spark.sql.Columnimport org.apache.spark.sql.DataFrameReaderimport org.apache.spark.rdd.RDDimport org.apache.spark.sql.catalyst.encoders.ExpressionEncoderimport org.apache.spark.sql.Encoderimport org.apache.spark.sql.DataFrameStatFunctionsimport org.apache.spark.sql.functions._import org.apache.spark.ml.linalg.Vectorsimport org.apache.spark.ml.feature.VectorAssemblerimport org.apache.spark.ml.Pipelineimport org.apache.spark.ml.evaluation.BinaryClassificationEvaluatorimport org.apache.spark.ml.classification.LogisticRegressionimport org.apache.spark.ml.classification.{ BinaryLogisticRegressionSummary, LogisticRegression }import org.apache.spark.ml.tuning.{ ParamGridBuilder, TrainValidationSplit }
导入源数据
val spark = SparkSession.builder().appName("Spark Logistic Regression").config("spark.some.config.option", "some-value").getOrCreate()// For implicit conversions like converting RDDs to DataFramesimport spark.implicits._val dataList: List[(Double, String, Double, Double, String, Double, Double, Double, Double)] = List( (0, "male", 37, 10, "no", 3, 18, 7, 4), (0, "female", 27, 4, "no", 4, 14, 6, 4), (0, "female", 32, 15, "yes", 1, 12, 1, 4), (0, "male", 57, 15, "yes", 5, 18, 6, 5), (0, "male", 22, 0.75, "no", 2, 17, 6, 3), (0, "female", 32, 1.5, "no", 2, 17, 5, 5), (0, "female", 22, 0.75, "no", 2, 12, 1, 3), (0, "male", 57, 15, "yes", 2, 14, 4, 4), (0, "female", 32, 15, "yes", 4, 16, 1, 2), (0, "male", 22, 1.5, "no", 4, 14, 4, 5), (0, "male", 37, 15, "yes", 2, 20, 7, 2), (0, "male", 27, 4, "yes", 4, 18, 6, 4), (0, "male", 47, 15, "yes", 5, 17, 6, 4), (0, "female", 22, 1.5, "no", 2, 17, 5, 4), (0, "female", 27, 4, "no", 4, 14, 5, 4), (0, "female", 37, 15, "yes", 1, 17, 5, 5), (0, "female", 37, 15, "yes", 2, 18, 4, 3), (0, "female", 22, 0.75, "no", 3, 16, 5, 4), (0, "female", 22, 1.5, "no", 2, 16, 5, 5), (0, "female", 27, 10, "yes", 2, 14, 1, 5), (0, "female", 22, 1.5, "no", 2, 16, 5, 5), (0, "female", 22, 1.5, "no", 2, 16, 5, 5), (0, "female", 27, 10, "yes", 4, 16, 5, 4), (0, "female", 32, 10, "yes", 3, 14, 1, 5), (0, "male", 37, 4, "yes", 2, 20, 6, 4), (0, "female", 22, 1.5, "no", 2, 18, 5, 5), (0, "female", 27, 7, "no", 4, 16, 1, 5), (0, "male", 42, 15, "yes", 5, 20, 6, 4), (0, "male", 27, 4, "yes", 3, 16, 5, 5), (0, "female", 27, 4, "yes", 3, 17, 5, 4), (0, "male", 42, 15, "yes", 4, 20, 6, 3), (0, "female", 22, 1.5, "no", 3, 16, 5, 5), (0, "male", 27, 0.417, "no", 4, 17, 6, 4), (0, "female", 42, 15, "yes", 5, 14, 5, 4), (0, "male", 32, 4, "yes", 1, 18, 6, 4), (0, "female", 22, 1.5, "no", 4, 16, 5, 3), (0, "female", 42, 15, "yes", 3, 12, 1, 4), (0, "female", 22, 4, "no", 4, 17, 5, 5), (0, "male", 22, 1.5, "yes", 1, 14, 3, 5), (0, "female", 22, 0.75, "no", 3, 16, 1, 5), (0, "male", 32, 10, "yes", 5, 20, 6, 5), (0, "male", 52, 15, "yes", 5, 18, 6, 3), (0, "female", 22, 0.417, "no", 5, 14, 1, 4), (0, "female", 27, 4, "yes", 2, 18, 6, 1), (0, "female", 32, 7, "yes", 5, 17, 5, 3), (0, "male", 22, 4, "no", 3, 16, 5, 5), (0, "female", 27, 7, "yes", 4, 18, 6, 5), (0, "female", 42, 15, "yes", 2, 18, 5, 4), (0, "male", 27, 1.5, "yes", 4, 16, 3, 5), (0, "male", 42, 15, "yes", 2, 20, 6, 4), (0, "female", 22, 0.75, "no", 5, 14, 3, 5), (0, "male", 32, 7, "yes", 2, 20, 6, 4), (0, "male", 27, 4, "yes", 5, 20, 6, 5), (0, "male", 27, 10, "yes", 4, 20, 6, 4), (0, "male", 22, 4, "no", 1, 18, 5, 5), (0, "female", 37, 15, "yes", 4, 14, 3, 1), (0, "male", 22, 1.5, "yes", 5, 16, 4, 4), (0, "female", 37, 15, "yes", 4, 17, 1, 5), (0, "female", 27, 0.75, "no", 4, 17, 5, 4), (0, "male", 32, 10, "yes", 4, 20, 6, 4), (0, "female", 47, 15, "yes", 5, 14, 7, 2), (0, "male", 37, 10, "yes", 3, 20, 6, 4), (0, "female", 22, 0.75, "no", 2, 16, 5, 5), (0, "male", 27, 4, "no", 2, 18, 4, 5), (0, "male", 32, 7, "no", 4, 20, 6, 4), (0, "male", 42, 15, "yes", 2, 17, 3, 5), (0, "male", 37, 10, "yes", 4, 20, 6, 4), (0, "female", 47, 15, "yes", 3, 17, 6, 5), (0, "female", 22, 1.5, "no", 5, 16, 5, 5), (0, "female", 27, 1.5, "no", 2, 16, 6, 4), (0, "female", 27, 4, "no", 3, 17, 5, 5), (0, "female", 32, 10, "yes", 5, 14, 4, 5), (0, "female", 22, 0.125, "no", 2, 12, 5, 5), (0, "male", 47, 15, "yes", 4, 14, 4, 3), (0, "male", 32, 15, "yes", 1, 14, 5, 5), (0, "male", 27, 7, "yes", 4, 16, 5, 5), (0, "female", 22, 1.5, "yes", 3, 16, 5, 5), (0, "male", 27, 4, "yes", 3, 17, 6, 5), (0, "female", 22, 1.5, "no", 3, 16, 5, 5), (0, "male", 57, 15, "yes", 2, 14, 7, 2), (0, "male", 17.5, 1.5, "yes", 3, 18, 6, 5), (0, "male", 57, 15, "yes", 4, 20, 6, 5), (0, "female", 22, 0.75, "no", 2, 16, 3, 4), (0, "male", 42, 4, "no", 4, 17, 3, 3), (0, "female", 22, 1.5, "yes", 4, 12, 1, 5), (0, "female", 22, 0.417, "no", 1, 17, 6, 4), (0, "female", 32, 15, "yes", 4, 17, 5, 5), (0, "female", 27, 1.5, "no", 3, 18, 5, 2), (0, "female", 22, 1.5, "yes", 3, 14, 1, 5), (0, "female", 37, 15, "yes", 3, 14, 1, 4), (0, "female", 32, 15, "yes", 4, 14, 3, 4), (0, "male", 37, 10, "yes", 2, 14, 5, 3), (0, "male", 37, 10, "yes", 4, 16, 5, 4), (0, "male", 57, 15, "yes", 5, 20, 5, 3), (0, "male", 27, 0.417, "no", 1, 16, 3, 4), (0, "female", 42, 15, "yes", 5, 14, 1, 5), (0, "male", 57, 15, "yes", 3, 16, 6, 1), (0, "male", 37, 10, "yes", 1, 16, 6, 4), (0, "male", 37, 15, "yes", 3, 17, 5, 5), (0, "male", 37, 15, "yes", 4, 20, 6, 5), (0, "female", 27, 10, "yes", 5, 14, 1, 5), (0, "male", 37, 10, "yes", 2, 18, 6, 4), (0, "female", 22, 0.125, "no", 4, 12, 4, 5), (0, "male", 57, 15, "yes", 5, 20, 6, 5), (0, "female", 37, 15, "yes", 4, 18, 6, 4), (0, "male", 22, 4, "yes", 4, 14, 6, 4), (0, "male", 27, 7, "yes", 4, 18, 5, 4), (0, "male", 57, 15, "yes", 4, 20, 5, 4), (0, "male", 32, 15, "yes", 3, 14, 6, 3), (0, "female", 22, 1.5, "no", 2, 14, 5, 4), (0, "female", 32, 7, "yes", 4, 17, 1, 5), (0, "female", 37, 15, "yes", 4, 17, 6, 5), (0, "female", 32, 1.5, "no", 5, 18, 5, 5), (0, "male", 42, 10, "yes", 5, 20, 7, 4), (0, "female", 27, 7, "no", 3, 16, 5, 4), (0, "male", 37, 15, "no", 4, 20, 6, 5), (0, "male", 37, 15, "yes", 4, 14, 3, 2), (0, "male", 32, 10, "no", 5, 18, 6, 4), (0, "female", 22, 0.75, "no", 4, 16, 1, 5), (0, "female", 27, 7, "yes", 4, 12, 2, 4), (0, "female", 27, 7, "yes", 2, 16, 2, 5), (0, "female", 42, 15, "yes", 5, 18, 5, 4), (0, "male", 42, 15, "yes", 4, 17, 5, 3), (0, "female", 27, 7, "yes", 2, 16, 1, 2), (0, "female", 22, 1.5, "no", 3, 16, 5, 5), (0, "male", 37, 15, "yes", 5, 20, 6, 5), (0, "female", 22, 0.125, "no", 2, 14, 4, 5), (0, "male", 27, 1.5, "no", 4, 16, 5, 5), (0, "male", 32, 1.5, "no", 2, 18, 6, 5), (0, "male", 27, 1.5, "no", 2, 17, 6, 5), (0, "female", 27, 10, "yes", 4, 16, 1, 3), (0, "male", 42, 15, "yes", 4, 18, 6, 5), (0, "female", 27, 1.5, "no", 2, 16, 6, 5), (0, "male", 27, 4, "no", 2, 18, 6, 3), (0, "female", 32, 10, "yes", 3, 14, 5, 3), (0, "female", 32, 15, "yes", 3, 18, 5, 4), (0, "female", 22, 0.75, "no", 2, 18, 6, 5), (0, "female", 37, 15, "yes", 2, 16, 1, 4), (0, "male", 27, 4, "yes", 4, 20, 5, 5), (0, "male", 27, 4, "no", 1, 20, 5, 4), (0, "female", 27, 10, "yes", 2, 12, 1, 4), (0, "female", 32, 15, "yes", 5, 18, 6, 4), (0, "male", 27, 7, "yes", 5, 12, 5, 3), (0, "male", 52, 15, "yes", 2, 18, 5, 4), (0, "male", 27, 4, "no", 3, 20, 6, 3), (0, "male", 37, 4, "yes", 1, 18, 5, 4), (0, "male", 27, 4, "yes", 4, 14, 5, 4), (0, "female", 52, 15, "yes", 5, 12, 1, 3), (0, "female", 57, 15, "yes", 4, 16, 6, 4), (0, "male", 27, 7, "yes", 1, 16, 5, 4), (0, "male", 37, 7, "yes", 4, 20, 6, 3), (0, "male", 22, 0.75, "no", 2, 14, 4, 3), (0, "male", 32, 4, "yes", 2, 18, 5, 3), (0, "male", 37, 15, "yes", 4, 20, 6, 3), (0, "male", 22, 0.75, "yes", 2, 14, 4, 3), (0, "male", 42, 15, "yes", 4, 20, 6, 3), (0, "female", 52, 15, "yes", 5, 17, 1, 1), (0, "female", 37, 15, "yes", 4, 14, 1, 2), (0, "male", 27, 7, "yes", 4, 14, 5, 3), (0, "male", 32, 4, "yes", 2, 16, 5, 5), (0, "female", 27, 4, "yes", 2, 18, 6, 5), (0, "female", 27, 4, "yes", 2, 18, 5, 5), (0, "male", 37, 15, "yes", 5, 18, 6, 5), (0, "female", 47, 15, "yes", 5, 12, 5, 4), (0, "female", 32, 10, "yes", 3, 17, 1, 4), (0, "female", 27, 1.5, "yes", 4, 17, 1, 2), (0, "female", 57, 15, "yes", 2, 18, 5, 2), (0, "female", 22, 1.5, "no", 4, 14, 5, 4), (0, "male", 42, 15, "yes", 3, 14, 3, 4), (0, "male", 57, 15, "yes", 4, 9, 2, 2), (0, "male", 57, 15, "yes", 4, 20, 6, 5), (0, "female", 22, 0.125, "no", 4, 14, 4, 5), (0, "female", 32, 10, "yes", 4, 14, 1, 5), (0, "female", 42, 15, "yes", 3, 18, 5, 4), (0, "female", 27, 1.5, "no", 2, 18, 6, 5), (0, "male", 32, 0.125, "yes", 2, 18, 5, 2), (0, "female", 27, 4, "no", 3, 16, 5, 4), (0, "female", 27, 10, "yes", 2, 16, 1, 4), (0, "female", 32, 7, "yes", 4, 16, 1, 3), (0, "female", 37, 15, "yes", 4, 14, 5, 4), (0, "female", 42, 15, "yes", 5, 17, 6, 2), (0, "male", 32, 1.5, "yes", 4, 14, 6, 5), (0, "female", 32, 4, "yes", 3, 17, 5, 3), (0, "female", 37, 7, "no", 4, 18, 5, 5), (0, "female", 22, 0.417, "yes", 3, 14, 3, 5), (0, "female", 27, 7, "yes", 4, 14, 1, 5), (0, "male", 27, 0.75, "no", 3, 16, 5, 5), (0, "male", 27, 4, "yes", 2, 20, 5, 5), (0, "male", 32, 10, "yes", 4, 16, 4, 5), (0, "male", 32, 15, "yes", 1, 14, 5, 5), (0, "male", 22, 0.75, "no", 3, 17, 4, 5), (0, "female", 27, 7, "yes", 4, 17, 1, 4), (0, "male", 27, 0.417, "yes", 4, 20, 5, 4), (0, "male", 37, 15, "yes", 4, 20, 5, 4), (0, "female", 37, 15, "yes", 2, 14, 1, 3), (0, "male", 22, 4, "yes", 1, 18, 5, 4), (0, "male", 37, 15, "yes", 4, 17, 5, 3), (0, "female", 22, 1.5, "no", 2, 14, 4, 5), (0, "male", 52, 15, "yes", 4, 14, 6, 2), (0, "female", 22, 1.5, "no", 4, 17, 5, 5), (0, "male", 32, 4, "yes", 5, 14, 3, 5), (0, "male", 32, 4, "yes", 2, 14, 3, 5), (0, "female", 22, 1.5, "no", 3, 16, 6, 5), (0, "male", 27, 0.75, "no", 2, 18, 3, 3), (0, "female", 22, 7, "yes", 2, 14, 5, 2), (0, "female", 27, 0.75, "no", 2, 17, 5, 3), (0, "female", 37, 15, "yes", 4, 12, 1, 2), (0, "female", 22, 1.5, "no", 1, 14, 1, 5), (0, "female", 37, 10, "no", 2, 12, 4, 4), (0, "female", 37, 15, "yes", 4, 18, 5, 3), (0, "female", 42, 15, "yes", 3, 12, 3, 3), (0, "male", 22, 4, "no", 2, 18, 5, 5), (0, "male", 52, 7, "yes", 2, 20, 6, 2), (0, "male", 27, 0.75, "no", 2, 17, 5, 5), (0, "female", 27, 4, "no", 2, 17, 4, 5), (0, "male", 42, 1.5, "no", 5, 20, 6, 5), (0, "male", 22, 1.5, "no", 4, 17, 6, 5), (0, "male", 22, 4, "no", 4, 17, 5, 3), (0, "female", 22, 4, "yes", 1, 14, 5, 4), (0, "male", 37, 15, "yes", 5, 20, 4, 5), (0, "female", 37, 10, "yes", 3, 16, 6, 3), (0, "male", 42, 15, "yes", 4, 17, 6, 5), (0, "female", 47, 15, "yes", 4, 17, 5, 5), (0, "male", 22, 1.5, "no", 4, 16, 5, 4), (0, "female", 32, 10, "yes", 3, 12, 1, 4), (0, "female", 22, 7, "yes", 1, 14, 3, 5), (0, "female", 32, 10, "yes", 4, 17, 5, 4), (0, "male", 27, 1.5, "yes", 2, 16, 2, 4), (0, "male", 37, 15, "yes", 4, 14, 5, 5), (0, "male", 42, 4, "yes", 3, 14, 4, 5), (0, "female", 37, 15, "yes", 5, 14, 5, 4), (0, "female", 32, 7, "yes", 4, 17, 5, 5), (0, "female", 42, 15, "yes", 4, 18, 6, 5), (0, "male", 27, 4, "no", 4, 18, 6, 4), (0, "male", 22, 0.75, "no", 4, 18, 6, 5), (0, "male", 27, 4, "yes", 4, 14, 5, 3), (0, "female", 22, 0.75, "no", 5, 18, 1, 5), (0, "female", 52, 15, "yes", 5, 9, 5, 5), (0, "male", 32, 10, "yes", 3, 14, 5, 5), (0, "female", 37, 15, "yes", 4, 16, 4, 4), (0, "male", 32, 7, "yes", 2, 20, 5, 4), (0, "female", 42, 15, "yes", 3, 18, 1, 4), (0, "male", 32, 15, "yes", 1, 16, 5, 5), (0, "male", 27, 4, "yes", 3, 18, 5, 5), (0, "female", 32, 15, "yes", 4, 12, 3, 4), (0, "male", 22, 0.75, "yes", 3, 14, 2, 4), (0, "female", 22, 1.5, "no", 3, 16, 5, 3), (0, "female", 42, 15, "yes", 4, 14, 3, 5), (0, "female", 52, 15, "yes", 3, 16, 5, 4), (0, "male", 37, 15, "yes", 5, 20, 6, 4), (0, "female", 47, 15, "yes", 4, 12, 2, 3), (0, "male", 57, 15, "yes", 2, 20, 6, 4), (0, "male", 32, 7, "yes", 4, 17, 5, 5), (0, "female", 27, 7, "yes", 4, 17, 1, 4), (0, "male", 22, 1.5, "no", 1, 18, 6, 5), (0, "female", 22, 4, "yes", 3, 9, 1, 4), (0, "female", 22, 1.5, "no", 2, 14, 1, 5), (0, "male", 42, 15, "yes", 2, 20, 6, 4), (0, "male", 57, 15, "yes", 4, 9, 2, 4), (0, "female", 27, 7, "yes", 2, 18, 1, 5), (0, "female", 22, 4, "yes", 3, 14, 1, 5), (0, "male", 37, 15, "yes", 4, 14, 5, 3), (0, "male", 32, 7, "yes", 1, 18, 6, 4), (0, "female", 22, 1.5, "no", 2, 14, 5, 5), (0, "female", 22, 1.5, "yes", 3, 12, 1, 3), (0, "male", 52, 15, "yes", 2, 14, 5, 5), (0, "female", 37, 15, "yes", 2, 14, 1, 1), (0, "female", 32, 10, "yes", 2, 14, 5, 5), (0, "male", 42, 15, "yes", 4, 20, 4, 5), (0, "female", 27, 4, "yes", 3, 18, 4, 5), (0, "male", 37, 15, "yes", 4, 20, 6, 5), (0, "male", 27, 1.5, "no", 3, 18, 5, 5), (0, "female", 22, 0.125, "no", 2, 16, 6, 3), (0, "male", 32, 10, "yes", 2, 20, 6, 3), (0, "female", 27, 4, "no", 4, 18, 5, 4), (0, "female", 27, 7, "yes", 2, 12, 5, 1), (0, "male", 32, 4, "yes", 5, 18, 6, 3), (0, "female", 37, 15, "yes", 2, 17, 5, 5), (0, "male", 47, 15, "no", 4, 20, 6, 4), (0, "male", 27, 1.5, "no", 1, 18, 5, 5), (0, "male", 37, 15, "yes", 4, 20, 6, 4), (0, "female", 32, 15, "yes", 4, 18, 1, 4), (0, "female", 32, 7, "yes", 4, 17, 5, 4), (0, "female", 42, 15, "yes", 3, 14, 1, 3), (0, "female", 27, 7, "yes", 3, 16, 1, 4), (0, "male", 27, 1.5, "no", 3, 16, 4, 2), (0, "male", 22, 1.5, "no", 3, 16, 3, 5), (0, "male", 27, 4, "yes", 3, 16, 4, 2), (0, "female", 27, 7, "yes", 3, 12, 1, 2), (0, "female", 37, 15, "yes", 2, 18, 5, 4), (0, "female", 37, 7, "yes", 3, 14, 4, 4), (0, "male", 22, 1.5, "no", 2, 16, 5, 5), (0, "male", 37, 15, "yes", 5, 20, 5, 4), (0, "female", 22, 1.5, "no", 4, 16, 5, 3), (0, "female", 32, 10, "yes", 4, 16, 1, 5), (0, "male", 27, 4, "no", 2, 17, 5, 3), (0, "female", 22, 0.417, "no", 4, 14, 5, 5), (0, "female", 27, 4, "no", 2, 18, 5, 5), (0, "male", 37, 15, "yes", 4, 18, 5, 3), (0, "male", 37, 10, "yes", 5, 20, 7, 4), (0, "female", 27, 7, "yes", 2, 14, 4, 2), (0, "male", 32, 4, "yes", 2, 16, 5, 5), (0, "male", 32, 4, "yes", 2, 16, 6, 4), (0, "male", 22, 1.5, "no", 3, 18, 4, 5), (0, "female", 22, 4, "yes", 4, 14, 3, 4), (0, "female", 17.5, 0.75, "no", 2, 18, 5, 4), (0, "male", 32, 10, "yes", 4, 20, 4, 5), (0, "female", 32, 0.75, "no", 5, 14, 3, 3), (0, "male", 37, 15, "yes", 4, 17, 5, 3), (0, "male", 32, 4, "no", 3, 14, 4, 5), (0, "female", 27, 1.5, "no", 2, 17, 3, 2), (0, "female", 22, 7, "yes", 4, 14, 1, 5), (0, "male", 47, 15, "yes", 5, 14, 6, 5), (0, "male", 27, 4, "yes", 1, 16, 4, 4), (0, "female", 37, 15, "yes", 5, 14, 1, 3), (0, "male", 42, 4, "yes", 4, 18, 5, 5), (0, "female", 32, 4, "yes", 2, 14, 1, 5), (0, "male", 52, 15, "yes", 2, 14, 7, 4), (0, "female", 22, 1.5, "no", 2, 16, 1, 4), (0, "male", 52, 15, "yes", 4, 12, 2, 4), (0, "female", 22, 0.417, "no", 3, 17, 1, 5), (0, "female", 22, 1.5, "no", 2, 16, 5, 5), (0, "male", 27, 4, "yes", 4, 20, 6, 4), (0, "female", 32, 15, "yes", 4, 14, 1, 5), (0, "female", 27, 1.5, "no", 2, 16, 3, 5), (0, "male", 32, 4, "no", 1, 20, 6, 5), (0, "male", 37, 15, "yes", 3, 20, 6, 4), (0, "female", 32, 10, "no", 2, 16, 6, 5), (0, "female", 32, 10, "yes", 5, 14, 5, 5), (0, "male", 37, 1.5, "yes", 4, 18, 5, 3), (0, "male", 32, 1.5, "no", 2, 18, 4, 4), (0, "female", 32, 10, "yes", 4, 14, 1, 4), (0, "female", 47, 15, "yes", 4, 18, 5, 4), (0, "female", 27, 10, "yes", 5, 12, 1, 5), (0, "male", 27, 4, "yes", 3, 16, 4, 5), (0, "female", 37, 15, "yes", 4, 12, 4, 2), (0, "female", 27, 0.75, "no", 4, 16, 5, 5), (0, "female", 37, 15, "yes", 4, 16, 1, 5), (0, "female", 32, 15, "yes", 3, 16, 1, 5), (0, "female", 27, 10, "yes", 2, 16, 1, 5), (0, "male", 27, 7, "no", 2, 20, 6, 5), (0, "female", 37, 15, "yes", 2, 14, 1, 3), (0, "male", 27, 1.5, "yes", 2, 17, 4, 4), (0, "female", 22, 0.75, "yes", 2, 14, 1, 5), (0, "male", 22, 4, "yes", 4, 14, 2, 4), (0, "male", 42, 0.125, "no", 4, 17, 6, 4), (0, "male", 27, 1.5, "yes", 4, 18, 6, 5), (0, "male", 27, 7, "yes", 3, 16, 6, 3), (0, "female", 52, 15, "yes", 4, 14, 1, 3), (0, "male", 27, 1.5, "no", 5, 20, 5, 2), (0, "female", 27, 1.5, "no", 2, 16, 5, 5), (0, "female", 27, 1.5, "no", 3, 17, 5, 5), (0, "male", 22, 0.125, "no", 5, 16, 4, 4), (0, "female", 27, 4, "yes", 4, 16, 1, 5), (0, "female", 27, 4, "yes", 4, 12, 1, 5), (0, "female", 47, 15, "yes", 2, 14, 5, 5), (0, "female", 32, 15, "yes", 3, 14, 5, 3), (0, "male", 42, 7, "yes", 2, 16, 5, 5), (0, "male", 22, 0.75, "no", 4, 16, 6, 4), (0, "male", 27, 0.125, "no", 3, 20, 6, 5), (0, "male", 32, 10, "yes", 3, 20, 6, 5), (0, "female", 22, 0.417, "no", 5, 14, 4, 5), (0, "female", 47, 15, "yes", 5, 14, 1, 4), (0, "female", 32, 10, "yes", 3, 14, 1, 5), (0, "male", 57, 15, "yes", 4, 17, 5, 5), (0, "male", 27, 4, "yes", 3, 20, 6, 5), (0, "female", 32, 7, "yes", 4, 17, 1, 5), (0, "female", 37, 10, "yes", 4, 16, 1, 5), (0, "female", 32, 10, "yes", 1, 18, 1, 4), (0, "female", 22, 4, "no", 3, 14, 1, 4), (0, "female", 27, 7, "yes", 4, 14, 3, 2), (0, "male", 57, 15, "yes", 5, 18, 5, 2), (0, "male", 32, 7, "yes", 2, 18, 5, 5), (0, "female", 27, 1.5, "no", 4, 17, 1, 3), (0, "male", 22, 1.5, "no", 4, 14, 5, 5), (0, "female", 22, 1.5, "yes", 4, 14, 5, 4), (0, "female", 32, 7, "yes", 3, 16, 1, 5), (0, "female", 47, 15, "yes", 3, 16, 5, 4), (0, "female", 22, 0.75, "no", 3, 16, 1, 5), (0, "female", 22, 1.5, "yes", 2, 14, 5, 5), (0, "female", 27, 4, "yes", 1, 16, 5, 5), (0, "male", 52, 15, "yes", 4, 16, 5, 5), (0, "male", 32, 10, "yes", 4, 20, 6, 5), (0, "male", 47, 15, "yes", 4, 16, 6, 4), (0, "female", 27, 7, "yes", 2, 14, 1, 2), (0, "female", 22, 1.5, "no", 4, 14, 4, 5), (0, "female", 32, 10, "yes", 2, 16, 5, 4), (0, "female", 22, 0.75, "no", 2, 16, 5, 4), (0, "female", 22, 1.5, "no", 2, 16, 5, 5), (0, "female", 42, 15, "yes", 3, 18, 6, 4), (0, "female", 27, 7, "yes", 5, 14, 4, 5), (0, "male", 42, 15, "yes", 4, 16, 4, 4), (0, "female", 57, 15, "yes", 3, 18, 5, 2), (0, "male", 42, 15, "yes", 3, 18, 6, 2), (0, "female", 32, 7, "yes", 2, 14, 1, 2), (0, "male", 22, 4, "no", 5, 12, 4, 5), (0, "female", 22, 1.5, "no", 1, 16, 6, 5), (0, "female", 22, 0.75, "no", 1, 14, 4, 5), (0, "female", 32, 15, "yes", 4, 12, 1, 5), (0, "male", 22, 1.5, "no", 2, 18, 5, 3), (0, "male", 27, 4, "yes", 5, 17, 2, 5), (0, "female", 27, 4, "yes", 4, 12, 1, 5), (0, "male", 42, 15, "yes", 5, 18, 5, 4), (0, "male", 32, 1.5, "no", 2, 20, 7, 3), (0, "male", 57, 15, "no", 4, 9, 3, 1), (0, "male", 37, 7, "no", 4, 18, 5, 5), (0, "male", 52, 15, "yes", 2, 17, 5, 4), (0, "male", 47, 15, "yes", 4, 17, 6, 5), (0, "female", 27, 7, "no", 2, 17, 5, 4), (0, "female", 27, 7, "yes", 4, 14, 5, 5), (0, "female", 22, 4, "no", 2, 14, 3, 3), (0, "male", 37, 7, "yes", 2, 20, 6, 5), (0, "male", 27, 7, "no", 4, 12, 4, 3), (0, "male", 42, 10, "yes", 4, 18, 6, 4), (0, "female", 22, 1.5, "no", 3, 14, 1, 5), (0, "female", 22, 4, "yes", 2, 14, 1, 3), (0, "female", 57, 15, "no", 4, 20, 6, 5), (0, "male", 37, 15, "yes", 4, 14, 4, 3), (0, "female", 27, 7, "yes", 3, 18, 5, 5), (0, "female", 17.5, 10, "no", 4, 14, 4, 5), (0, "male", 22, 4, "yes", 4, 16, 5, 5), (0, "female", 27, 4, "yes", 2, 16, 1, 4), (0, "female", 37, 15, "yes", 2, 14, 5, 1), (0, "female", 22, 1.5, "no", 5, 14, 1, 4), (0, "male", 27, 7, "yes", 2, 20, 5, 4), (0, "male", 27, 4, "yes", 4, 14, 5, 5), (0, "male", 22, 0.125, "no", 1, 16, 3, 5), (0, "female", 27, 7, "yes", 4, 14, 1, 4), (0, "female", 32, 15, "yes", 5, 16, 5, 3), (0, "male", 32, 10, "yes", 4, 18, 5, 4), (0, "female", 32, 15, "yes", 2, 14, 3, 4), (0, "female", 22, 1.5, "no", 3, 17, 5, 5), (0, "male", 27, 4, "yes", 4, 17, 4, 4), (0, "female", 52, 15, "yes", 5, 14, 1, 5), (0, "female", 27, 7, "yes", 2, 12, 1, 2), (0, "female", 27, 7, "yes", 3, 12, 1, 4), (0, "female", 42, 15, "yes", 2, 14, 1, 4), (0, "female", 42, 15, "yes", 4, 14, 5, 4), (0, "male", 27, 7, "yes", 4, 14, 3, 3), (0, "male", 27, 7, "yes", 2, 20, 6, 2), (0, "female", 42, 15, "yes", 3, 12, 3, 3), (0, "male", 27, 4, "yes", 3, 16, 3, 5), (0, "female", 27, 7, "yes", 3, 14, 1, 4), (0, "female", 22, 1.5, "no", 2, 14, 4, 5), (0, "female", 27, 4, "yes", 4, 14, 1, 4), (0, "female", 22, 4, "no", 4, 14, 5, 5), (0, "female", 22, 1.5, "no", 2, 16, 4, 5), (0, "male", 47, 15, "no", 4, 14, 5, 4), (0, "male", 37, 10, "yes", 2, 18, 6, 2), (0, "male", 37, 15, "yes", 3, 17, 5, 4), (0, "female", 27, 4, "yes", 2, 16, 1, 4), (3, "male", 27, 1.5, "no", 3, 18, 4, 4), (3, "female", 27, 4, "yes", 3, 17, 1, 5), (7, "male", 37, 15, "yes", 5, 18, 6, 2), (12, "female", 32, 10, "yes", 3, 17, 5, 2), (1, "male", 22, 0.125, "no", 4, 16, 5, 5), (1, "female", 22, 1.5, "yes", 2, 14, 1, 5), (12, "male", 37, 15, "yes", 4, 14, 5, 2), (7, "female", 22, 1.5, "no", 2, 14, 3, 4), (2, "male", 37, 15, "yes", 2, 18, 6, 4), (3, "female", 32, 15, "yes", 4, 12, 3, 2), (1, "female", 37, 15, "yes", 4, 14, 4, 2), (7, "female", 42, 15, "yes", 3, 17, 1, 4), (12, "female", 42, 15, "yes", 5, 9, 4, 1), (12, "male", 37, 10, "yes", 2, 20, 6, 2), (12, "female", 32, 15, "yes", 3, 14, 1, 2), (3, "male", 27, 4, "no", 1, 18, 6, 5), (7, "male", 37, 10, "yes", 2, 18, 7, 3), (7, "female", 27, 4, "no", 3, 17, 5, 5), (1, "male", 42, 15, "yes", 4, 16, 5, 5), (1, "female", 47, 15, "yes", 5, 14, 4, 5), (7, "female", 27, 4, "yes", 3, 18, 5, 4), (1, "female", 27, 7, "yes", 5, 14, 1, 4), (12, "male", 27, 1.5, "yes", 3, 17, 5, 4), (12, "female", 27, 7, "yes", 4, 14, 6, 2), (3, "female", 42, 15, "yes", 4, 16, 5, 4), (7, "female", 27, 10, "yes", 4, 12, 7, 3), (1, "male", 27, 1.5, "no", 2, 18, 5, 2), (1, "male", 32, 4, "no", 4, 20, 6, 4), (1, "female", 27, 7, "yes", 3, 14, 1, 3), (3, "female", 32, 10, "yes", 4, 14, 1, 4), (3, "male", 27, 4, "yes", 2, 18, 7, 2), (1, "female", 17.5, 0.75, "no", 5, 14, 4, 5), (1, "female", 32, 10, "yes", 4, 18, 1, 5), (7, "female", 32, 7, "yes", 2, 17, 6, 4), (7, "male", 37, 15, "yes", 2, 20, 6, 4), (7, "female", 37, 10, "no", 1, 20, 5, 3), (12, "female", 32, 10, "yes", 2, 16, 5, 5), (7, "male", 52, 15, "yes", 2, 20, 6, 4), (7, "female", 42, 15, "yes", 1, 12, 1, 3), (1, "male", 52, 15, "yes", 2, 20, 6, 3), (2, "male", 37, 15, "yes", 3, 18, 6, 5), (12, "female", 22, 4, "no", 3, 12, 3, 4), (12, "male", 27, 7, "yes", 1, 18, 6, 2), (1, "male", 27, 4, "yes", 3, 18, 5, 5), (12, "male", 47, 15, "yes", 4, 17, 6, 5), (12, "female", 42, 15, "yes", 4, 12, 1, 1), (7, "male", 27, 4, "no", 3, 14, 3, 4), (7, "female", 32, 7, "yes", 4, 18, 4, 5), (1, "male", 32, 0.417, "yes", 3, 12, 3, 4), (3, "male", 47, 15, "yes", 5, 16, 5, 4), (12, "male", 37, 15, "yes", 2, 20, 5, 4), (7, "male", 22, 4, "yes", 2, 17, 6, 4), (1, "male", 27, 4, "no", 2, 14, 4, 5), (7, "female", 52, 15, "yes", 5, 16, 1, 3), (1, "male", 27, 4, "no", 3, 14, 3, 3), (1, "female", 27, 10, "yes", 4, 16, 1, 4), (1, "male", 32, 7, "yes", 3, 14, 7, 4), (7, "male", 32, 7, "yes", 2, 18, 4, 1), (3, "male", 22, 1.5, "no", 1, 14, 3, 2), (7, "male", 22, 4, "yes", 3, 18, 6, 4), (7, "male", 42, 15, "yes", 4, 20, 6, 4), (2, "female", 57, 15, "yes", 1, 18, 5, 4), (7, "female", 32, 4, "yes", 3, 18, 5, 2), (1, "male", 27, 4, "yes", 1, 16, 4, 4), (7, "male", 32, 7, "yes", 4, 16, 1, 4), (2, "male", 57, 15, "yes", 1, 17, 4, 4), (7, "female", 42, 15, "yes", 4, 14, 5, 2), (7, "male", 37, 10, "yes", 1, 18, 5, 3), (3, "male", 42, 15, "yes", 3, 17, 6, 1), (1, "female", 52, 15, "yes", 3, 14, 4, 4), (2, "female", 27, 7, "yes", 3, 17, 5, 3), (12, "male", 32, 7, "yes", 2, 12, 4, 2), (1, "male", 22, 4, "no", 4, 14, 2, 5), (3, "male", 27, 7, "yes", 3, 18, 6, 4), (12, "female", 37, 15, "yes", 1, 18, 5, 5), (7, "female", 32, 15, "yes", 3, 17, 1, 3), (7, "female", 27, 7, "no", 2, 17, 5, 5), (1, "female", 32, 7, "yes", 3, 17, 5, 3), (1, "male", 32, 1.5, "yes", 2, 14, 2, 4), (12, "female", 42, 15, "yes", 4, 14, 1, 2), (7, "male", 32, 10, "yes", 3, 14, 5, 4), (7, "male", 37, 4, "yes", 1, 20, 6, 3), (1, "female", 27, 4, "yes", 2, 16, 5, 3), (12, "female", 42, 15, "yes", 3, 14, 4, 3), (1, "male", 27, 10, "yes", 5, 20, 6, 5), (12, "male", 37, 10, "yes", 2, 20, 6, 2), (12, "female", 27, 7, "yes", 1, 14, 3, 3), (3, "female", 27, 7, "yes", 4, 12, 1, 2), (3, "male", 32, 10, "yes", 2, 14, 4, 4), (12, "female", 17.5, 0.75, "yes", 2, 12, 1, 3), (12, "female", 32, 15, "yes", 3, 18, 5, 4), (2, "female", 22, 7, "no", 4, 14, 4, 3), (1, "male", 32, 7, "yes", 4, 20, 6, 5), (7, "male", 27, 4, "yes", 2, 18, 6, 2), (1, "female", 22, 1.5, "yes", 5, 14, 5, 3), (12, "female", 32, 15, "no", 3, 17, 5, 1), (12, "female", 42, 15, "yes", 2, 12, 1, 2), (7, "male", 42, 15, "yes", 3, 20, 5, 4), (12, "male", 32, 10, "no", 2, 18, 4, 2), (12, "female", 32, 15, "yes", 3, 9, 1, 1), (7, "male", 57, 15, "yes", 5, 20, 4, 5), (12, "male", 47, 15, "yes", 4, 20, 6, 4), (2, "female", 42, 15, "yes", 2, 17, 6, 3), (12, "male", 37, 15, "yes", 3, 17, 6, 3), (12, "male", 37, 15, "yes", 5, 17, 5, 2), (7, "male", 27, 10, "yes", 2, 20, 6, 4), (2, "male", 37, 15, "yes", 2, 16, 5, 4), (12, "female", 32, 15, "yes", 1, 14, 5, 2), (7, "male", 32, 10, "yes", 3, 17, 6, 3), (2, "male", 37, 15, "yes", 4, 18, 5, 1), (7, "female", 27, 1.5, "no", 2, 17, 5, 5), (3, "female", 47, 15, "yes", 2, 17, 5, 2), (12, "male", 37, 15, "yes", 2, 17, 5, 4), (12, "female", 27, 4, "no", 2, 14, 5, 5), (2, "female", 27, 10, "yes", 4, 14, 1, 5), (1, "female", 22, 4, "yes", 3, 16, 1, 3), (12, "male", 52, 7, "no", 4, 16, 5, 5), (2, "female", 27, 4, "yes", 1, 16, 3, 5), (7, "female", 37, 15, "yes", 2, 17, 6, 4), (2, "female", 27, 4, "no", 1, 17, 3, 1), (12, "female", 17.5, 0.75, "yes", 2, 12, 3, 5), (7, "female", 32, 15, "yes", 5, 18, 5, 4), (7, "female", 22, 4, "no", 1, 16, 3, 5), (2, "male", 32, 4, "yes", 4, 18, 6, 4), (1, "female", 22, 1.5, "yes", 3, 18, 5, 2), (3, "female", 42, 15, "yes", 2, 17, 5, 4), (1, "male", 32, 7, "yes", 4, 16, 4, 4), (12, "male", 37, 15, "no", 3, 14, 6, 2), (1, "male", 42, 15, "yes", 3, 16, 6, 3), (1, "male", 27, 4, "yes", 1, 18, 5, 4), (2, "male", 37, 15, "yes", 4, 20, 7, 3), (7, "male", 37, 15, "yes", 3, 20, 6, 4), (3, "male", 22, 1.5, "no", 2, 12, 3, 3), (3, "male", 32, 4, "yes", 3, 20, 6, 2), (2, "male", 32, 15, "yes", 5, 20, 6, 5), (12, "female", 52, 15, "yes", 1, 18, 5, 5), (12, "male", 47, 15, "no", 1, 18, 6, 5), (3, "female", 32, 15, "yes", 4, 16, 4, 4), (7, "female", 32, 15, "yes", 3, 14, 3, 2), (7, "female", 27, 7, "yes", 4, 16, 1, 2), (12, "male", 42, 15, "yes", 3, 18, 6, 2), (7, "female", 42, 15, "yes", 2, 14, 3, 2), (12, "male", 27, 7, "yes", 2, 17, 5, 4), (3, "male", 32, 10, "yes", 4, 14, 4, 3), (7, "male", 47, 15, "yes", 3, 16, 4, 2), (1, "male", 22, 1.5, "yes", 1, 12, 2, 5), (7, "female", 32, 10, "yes", 2, 18, 5, 4), (2, "male", 32, 10, "yes", 2, 17, 6, 5), (2, "male", 22, 7, "yes", 3, 18, 6, 2), (1, "female", 32, 15, "yes", 3, 14, 1, 5)) val colArray1: Array[String] = Array("affairs", "gender", "age", "yearsmarried", "children", "religiousness", "education", "occupation", "rating")val data = dataList.toDF(colArray1: _*)
逻辑回归建模
data.createOrReplaceTempView("df")val affairs = "case when affairs>0 then 1 else 0 end as affairs,"val gender = "case when gender='female' then 0 else 1 end as gender,"val children = "case when children='yes' then 1 else 0 end as children,"val sqlDF = spark.sql("select " + affairs + gender + "age,yearsmarried," + children + "religiousness,education,occupation,rating" + " from df ")sqlDF.show()val colArray2 = Array("gender", "age", "yearsmarried", "children", "religiousness", "education", "occupation", "rating")val vecDF: DataFrame = new VectorAssembler().setInputCols(colArray2).setOutputCol("features").transform(sqlDF)val Array(trainingDF, testDF) = vecDF.randomSplit(Array(0.9, 0.1), seed = 12345)val lrModel = new LogisticRegression().setLabelCol("affairs").setFeaturesCol("features").fit(trainingDF)// 输出逻辑回归的系数和截距println(s"Coefficients: ${lrModel.coefficients} Intercept: ${lrModel.intercept}")// 设置ElasticNet混合参数,范围为[0，1]。// 对于α= 0，惩罚是L2惩罚。 对于alpha = 1，它是一个L1惩罚。 对于0 <α> <1，惩罚是L1和L2的组合。 默认值为0.0，这是一个L2惩罚。lrModel.getElasticNetParam lrModel.getRegParam // 正则化参数>=0lrModel.getStandardization // 在拟合模型之前,是否标准化特征// 在二进制分类中设置阈值，范围为[0，1]。如果类标签1的估计概率>Threshold，则预测1，否则0.高阈值鼓励模型更频繁地预测0; 低阈值鼓励模型更频繁地预测1。默认值为0.5。lrModel.getThreshold// 设置迭代的收敛容限。 较小的值将导致更高的精度与更多的迭代的成本。 默认值为1E-6。lrModel.getTollrModel.getMaxIterlrModel.transform(testDF).select("features","rawPrediction","probability","prediction").show(30,false)// Extract the summary from the returned LogisticRegressionModel instance trained in the earlier// exampleval trainingSummary = lrModel.summary// Obtain the objective per iteration.val objectiveHistory = trainingSummary.objectiveHistoryobjectiveHistory.foreach(loss => println(loss))
代码执行结果
sqlDF.show()+-------+------+----+------------+--------+-------------+---------+----------+------+|affairs|gender| age|yearsmarried|children|religiousness|education|occupation|rating|+-------+------+----+------------+--------+-------------+---------+----------+------+| 0| 1|37.0| 10.0| 0| 3.0| 18.0| 7.0| 4.0|| 0| 0|27.0| 4.0| 0| 4.0| 14.0| 6.0| 4.0|| 0| 0|32.0| 15.0| 1| 1.0| 12.0| 1.0| 4.0|| 0| 1|57.0| 15.0| 1| 5.0| 18.0| 6.0| 5.0|| 0| 1|22.0| 0.75| 0| 2.0| 17.0| 6.0| 3.0|| 0| 0|32.0| 1.5| 0| 2.0| 17.0| 5.0| 5.0|| 0| 0|22.0| 0.75| 0| 2.0| 12.0| 1.0| 3.0|| 0| 1|57.0| 15.0| 1| 2.0| 14.0| 4.0| 4.0|| 0| 0|32.0| 15.0| 1| 4.0| 16.0| 1.0| 2.0|| 0| 1|22.0| 1.5| 0| 4.0| 14.0| 4.0| 5.0|| 0| 1|37.0| 15.0| 1| 2.0| 20.0| 7.0| 2.0|| 0| 1|27.0| 4.0| 1| 4.0| 18.0| 6.0| 4.0|| 0| 1|47.0| 15.0| 1| 5.0| 17.0| 6.0| 4.0|| 0| 0|22.0| 1.5| 0| 2.0| 17.0| 5.0| 4.0|| 0| 0|27.0| 4.0| 0| 4.0| 14.0| 5.0| 4.0|| 0| 0|37.0| 15.0| 1| 1.0| 17.0| 5.0| 5.0|| 0| 0|37.0| 15.0| 1| 2.0| 18.0| 4.0| 3.0|| 0| 0|22.0| 0.75| 0| 3.0| 16.0| 5.0| 4.0|| 0| 0|22.0| 1.5| 0| 2.0| 16.0| 5.0| 5.0|| 0| 0|27.0| 10.0| 1| 2.0| 14.0| 1.0| 5.0|+-------+------+----+------------+--------+-------------+---------+----------+------+only showing top 20 rowsval colArray2 = Array("gender", "age", "yearsmarried", "children", "religiousness", "education", "occupation", "rating")colArray2: Array[String] = Array(gender, age, yearsmarried, children, religiousness, education, occupation, rating)val vecDF: DataFrame = new VectorAssembler().setInputCols(colArray2).setOutputCol("features").transform(sqlDF)vecDF: org.apache.spark.sql.DataFrame = [affairs: int, gender: int ... 8 more fields]val Array(trainingDF, testDF) = vecDF.randomSplit(Array(0.9, 0.1), seed = 12345)trainingDF: org.apache.spark.sql.Dataset[org.apache.spark.sql.Row] = [affairs: int, gender: int ... 8 more fields]testDF: org.apache.spark.sql.Dataset[org.apache.spark.sql.Row] = [affairs: int, gender: int ... 8 more fields]val lrModel = new LogisticRegression().setLabelCol("affairs").setFeaturesCol("features").fit(trainingDF)lrModel: org.apache.spark.ml.classification.LogisticRegressionModel = logreg_9d8a91cb1a0b// 输出逻辑回归的系数和截距println(s"Coefficients: ${lrModel.coefficients} Intercept: ${lrModel.intercept}")Coefficients: [0.308688148697453,-0.04150802586369178,0.08771801000466706,0.6896853841812993,-0.3425440049065515,0.008629892776596084,0.0458687806620022,-0.46268114569065383] Intercept: 1.263200227888706 // 设置ElasticNet混合参数,范围为[0，1]。// 对于α= 0，惩罚是L2惩罚。 对于alpha = 1，它是一个L1惩罚。 对于0 <α> <1，惩罚是L1和L2的组合。 默认值为0.0，这是一个L2惩罚。lrModel.getElasticNetParam res5: Double = 0.0lrModel.getRegParam // 正则化参数>=0res6: Double = 0.0lrModel.getStandardization // 在拟合模型之前,是否标准化特征res7: Boolean = true// 在二进制分类中设置阈值，范围为[0，1]。如果类标签1的估计概率>Threshold，则预测1，否则0.高阈值鼓励模型更频繁地预测0; 低阈值鼓励模型更频繁地预测1。默认值为0.5。lrModel.getThresholdres8: Double = 0.5// 设置迭代的收敛容限。 较小的值将导致更高的精度与更多的迭代的成本。 默认值为1E-6。lrModel.getTolres9: Double = 1.0E-6lrModel.transform(testDF).show+-------+------+----+------------+--------+-------------+---------+----------+------+--------------------+--------------------+--------------------+----------+|affairs|gender| age|yearsmarried|children|religiousness|education|occupation|rating| features| rawPrediction| probability|prediction|+-------+------+----+------------+--------+-------------+---------+----------+------+--------------------+--------------------+--------------------+----------+| 0| 0|22.0| 0.125| 0| 4.0| 14.0| 4.0| 5.0|[0.0,22.0,0.125,0...|[3.01829971642105...|[0.95339403355398...| 0.0|| 0| 0|22.0| 0.417| 1| 3.0| 14.0| 3.0| 5.0|[0.0,22.0,0.417,1...|[2.00632544907384...|[0.88145961149358...| 0.0|| 0| 0|27.0| 1.5| 0| 2.0| 16.0| 6.0| 5.0|[0.0,27.0,1.5,0.0...|[2.31114222529279...|[0.90979563879849...| 0.0|| 0| 0|27.0| 4.0| 1| 3.0| 18.0| 4.0| 5.0|[0.0,27.0,4.0,1.0...|[1.81918359677719...|[0.86046813628746...| 0.0|| 0| 0|27.0| 7.0| 1| 2.0| 18.0| 1.0| 5.0|[0.0,27.0,7.0,1.0...|[1.35109190384264...|[0.79430808378365...| 0.0|| 0| 0|27.0| 7.0| 1| 3.0| 16.0| 1.0| 4.0|[0.0,27.0,7.0,1.0...|[1.24821454861173...|[0.77699063797650...| 0.0|| 0| 0|27.0| 10.0| 1| 2.0| 12.0| 1.0| 4.0|[0.0,27.0,10.0,1....|[0.67703608479756...|[0.66307686153089...| 0.0|| 0| 0|32.0| 10.0| 1| 4.0| 17.0| 5.0| 4.0|[0.0,32.0,10.0,1....|[1.34303963739813...|[0.79298936429536...| 0.0|| 0| 0|32.0| 10.0| 1| 5.0| 14.0| 4.0| 5.0|[0.0,32.0,10.0,1....|[2.22002324698713...|[0.90203325004083...| 0.0|| 0| 0|32.0| 15.0| 1| 3.0| 18.0| 5.0| 4.0|[0.0,32.0,15.0,1....|[0.55327568969165...|[0.63489524159656...| 0.0|| 0| 0|37.0| 15.0| 1| 4.0| 17.0| 1.0| 5.0|[0.0,37.0,15.0,1....|[1.75814598503192...|[0.85297730582863...| 0.0|| 0| 0|52.0| 15.0| 1| 5.0| 9.0| 5.0| 5.0|[0.0,52.0,15.0,1....|[2.60887439745861...|[0.93143054154558...| 0.0|| 0| 0|52.0| 15.0| 1| 5.0| 12.0| 1.0| 3.0|[0.0,52.0,15.0,1....|[1.84109755039552...|[0.86307846107252...| 0.0|| 0| 0|57.0| 15.0| 1| 4.0| 16.0| 6.0| 4.0|[0.0,57.0,15.0,1....|[1.90491134608169...|[0.87044638395268...| 0.0|| 0| 1|22.0| 4.0| 0| 1.0| 18.0| 5.0| 5.0|[1.0,22.0,4.0,0.0...|[1.26168391246747...|[0.77931584772929...| 0.0|| 0| 1|22.0| 4.0| 0| 2.0| 18.0| 5.0| 5.0|[1.0,22.0,4.0,0.0...|[1.60422791737402...|[0.83260846569570...| 0.0|| 0| 1|27.0| 4.0| 1| 3.0| 16.0| 5.0| 5.0|[1.0,27.0,4.0,1.0...|[1.48188645297092...|[0.81485734920851...| 0.0|| 0| 1|27.0| 4.0| 1| 4.0| 14.0| 5.0| 4.0|[1.0,27.0,4.0,1.0...|[1.37900909774001...|[0.79883180985416...| 0.0|| 0| 1|32.0| 0.125| 1| 2.0| 18.0| 5.0| 2.0|[1.0,32.0,0.125,1...|[0.28148664352576...|[0.56991065665974...| 0.0|| 0| 1|32.0| 10.0| 1| 2.0| 20.0| 6.0| 3.0|[1.0,32.0,10.0,1....|[-0.1851761257948...|[0.45383780246566...| 1.0|+-------+------+----+------------+--------+-------------+---------+----------+------+--------------------+--------------------+--------------------+----------+only showing top 20 rows// Extract the summary from the returned LogisticRegressionModel instance trained in the earlier// exampleval trainingSummary = lrModel.summarytrainingSummary: org.apache.spark.ml.classification.LogisticRegressionTrainingSummary = org.apache.spark.ml.classification.BinaryLogisticRegressionTrainingSummary@4cde233d// Obtain the objective per iteration.val objectiveHistory = trainingSummary.objectiveHistoryobjectiveHistory: Array[Double] = Array(0.5613118243072733, 0.5564125149222438, 0.5365395467216898, 0.5160918427628939, 0.51304621799159, 0.5105231964507352, 0.5079869547558363, 0.5072888873031864, 0.5067113660796532, 0.506520677080951, 0.5059147658563949, 0.5053652033316485, 0.5047266888422277, 0.5045473900598205, 0.5041496504941453, 0.5034630545828777, 0.5025745763542784, 0.5019910559468922, 0.5012033102192196, 0.5009489760675826, 0.5008431925740259, 0.5008297629370251, 0.5008258245513862, 0.5008137617093257, 0.5008136785235711, 0.5008130045533166, 0.5008129888367148, 0.5008129675120628, 0.5008129469652479, 0.5008129168191972, 0.5008129132692991, 0.5008129124596163, 0.5008129124081014, 0.500812912251931, 0.5008129121356268)objectiveHistory.foreach(loss => println(loss))0.56131182430727330.55641251492224380.53653954672168980.51609184276289390.513046217991590.51052319645073520.50798695475583630.50728888730318640.50671136607965320.5065206770809510.50591476585639490.50536520333164850.50472668884222770.50454739005982050.50414965049414530.50346305458287770.50257457635427840.50199105594689220.50120331021921960.50094897606758260.50084319257402590.50082976293702510.50082582455138620.50081376170932570.50081367852357110.50081300455331660.50081298883671480.50081296751206280.50081294696524790.50081291681919720.50081291326929910.50081291245961630.50081291240810140.5008129122519310.5008129121356268 lrModel.transform(testDF).select("features","rawPrediction","probability","prediction").show(30,false)+-------------------------------------+--------------------------------------------+----------------------------------------+----------+|features |rawPrediction |probability |prediction|+-------------------------------------+--------------------------------------------+----------------------------------------+----------+|[0.0,22.0,0.125,0.0,4.0,14.0,4.0,5.0]|[3.0182997164210517,-3.0182997164210517] |[0.9533940335539883,0.04660596644601167]|0.0 ||[0.0,22.0,0.417,1.0,3.0,14.0,3.0,5.0]|[2.00632544907384,-2.00632544907384] |[0.8814596114935873,0.11854038850641263]|0.0 ||[0.0,27.0,1.5,0.0,2.0,16.0,6.0,5.0] |[2.311142225292793,-2.311142225292793] |[0.9097956387984996,0.09020436120150035]|0.0 ||[0.0,27.0,4.0,1.0,3.0,18.0,4.0,5.0] |[1.81918359677719,-1.81918359677719] |[0.8604681362874618,0.13953186371253828]|0.0 ||[0.0,27.0,7.0,1.0,2.0,18.0,1.0,5.0] |[1.351091903842644,-1.351091903842644] |[0.7943080837836515,0.20569191621634847]|0.0 ||[0.0,27.0,7.0,1.0,3.0,16.0,1.0,4.0] |[1.2482145486117338,-1.2482145486117338] |[0.7769906379765039,0.2230093620234961] |0.0 ||[0.0,27.0,10.0,1.0,2.0,12.0,1.0,4.0] |[0.6770360847975654,-0.6770360847975654] |[0.6630768615308953,0.33692313846910465]|0.0 ||[0.0,32.0,10.0,1.0,4.0,17.0,5.0,4.0] |[1.343039637398138,-1.343039637398138] |[0.7929893642953615,0.20701063570463848]|0.0 ||[0.0,32.0,10.0,1.0,5.0,14.0,4.0,5.0] |[2.220023246987134,-2.220023246987134] |[0.9020332500408325,0.09796674995916752]|0.0 ||[0.0,32.0,15.0,1.0,3.0,18.0,5.0,4.0] |[0.5532756896916551,-0.5532756896916551] |[0.6348952415965647,0.3651047584034352] |0.0 ||[0.0,37.0,15.0,1.0,4.0,17.0,1.0,5.0] |[1.7581459850319243,-1.7581459850319243] |[0.8529773058286395,0.14702269417136052]|0.0 ||[0.0,52.0,15.0,1.0,5.0,9.0,5.0,5.0] |[2.6088743974586124,-2.6088743974586124] |[0.9314305415455806,0.06856945845441945]|0.0 ||[0.0,52.0,15.0,1.0,5.0,12.0,1.0,3.0] |[1.8410975503955256,-1.8410975503955256] |[0.8630784610725231,0.13692153892747697]|0.0 ||[0.0,57.0,15.0,1.0,4.0,16.0,6.0,4.0] |[1.904911346081691,-1.904911346081691] |[0.8704463839526814,0.1295536160473186] |0.0 ||[1.0,22.0,4.0,0.0,1.0,18.0,5.0,5.0] |[1.2616839124674724,-1.2616839124674724] |[0.7793158477292919,0.22068415227070803]|0.0 ||[1.0,22.0,4.0,0.0,2.0,18.0,5.0,5.0] |[1.6042279173740237,-1.6042279173740237] |[0.832608465695705,0.16739153430429493] |0.0 ||[1.0,27.0,4.0,1.0,3.0,16.0,5.0,5.0] |[1.4818864529709268,-1.4818864529709268] |[0.8148573492085158,0.1851426507914842] |0.0 ||[1.0,27.0,4.0,1.0,4.0,14.0,5.0,4.0] |[1.379009097740017,-1.379009097740017] |[0.7988318098541624,0.2011681901458377] |0.0 ||[1.0,32.0,0.125,1.0,2.0,18.0,5.0,2.0]|[0.28148664352576547,-0.28148664352576547] |[0.569910656659749,0.430089343340251] |0.0 ||[1.0,32.0,10.0,1.0,2.0,20.0,6.0,3.0] |[-0.1851761257948623,0.1851761257948623] |[0.45383780246566996,0.5461621975343299]|1.0 ||[1.0,32.0,10.0,1.0,4.0,20.0,6.0,4.0] |[0.9625930297088949,-0.9625930297088949] |[0.7236406723848533,0.2763593276151468] |0.0 ||[1.0,32.0,15.0,1.0,1.0,16.0,5.0,5.0] |[0.039440462424945366,-0.039440462424945366]|[0.5098588376463971,0.4901411623536029] |0.0 ||[1.0,37.0,4.0,1.0,1.0,18.0,5.0,4.0] |[0.7319377705508958,-0.7319377705508958] |[0.6752303588678488,0.3247696411321513] |0.0 ||[1.0,37.0,15.0,1.0,5.0,20.0,5.0,4.0] |[1.119955894572572,-1.119955894572572] |[0.7539805352533917,0.24601946474660835]|0.0 ||[1.0,42.0,15.0,1.0,4.0,17.0,6.0,5.0] |[1.4276540623429193,-1.4276540623429193] |[0.8065355283195409,0.19346447168045908]|0.0 ||[1.0,42.0,15.0,1.0,4.0,20.0,4.0,5.0] |[1.4935019453371354,-1.4935019453371354] |[0.8166033137058254,0.1833966862941747] |0.0 ||[1.0,42.0,15.0,1.0,4.0,20.0,6.0,3.0] |[0.4764020926318233,-0.4764020926318233] |[0.6168979221749373,0.38310207782506256]|0.0 ||[1.0,57.0,15.0,1.0,2.0,14.0,4.0,4.0] |[1.0201325344483316,-1.0201325344483316] |[0.734998414766428,0.265001585233572] |0.0 ||[1.0,57.0,15.0,1.0,2.0,14.0,7.0,2.0] |[-0.04283609891898266,0.04283609891898266] |[0.48929261249695394,0.5107073875030461]|1.0 ||[1.0,57.0,15.0,1.0,5.0,20.0,5.0,3.0] |[1.4874352661557535,-1.4874352661557535] |[0.8156930079647114,0.18430699203528864]|0.0 |+-------------------------------------+--------------------------------------------+----------------------------------------+----------+only showing top 30 rows