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indexer = [StringIndexer(inputCol=column_name, outputCol=column_name+"Index", handleInvalid="keep") for column_name in column_to_index]
assembler = VectorAssembler(inputCols=["PclassIndex","SexIndex","Age","Fare","WithFamily","EmbarkedIndex"], outputCol="features")
labelindexer = StringIndexer(inputCol="Survived", outputCol="label")
sql_transformer = SQLTransformer(statement="SELECT features, label FROM __THIS__")
indexer.extend([assembler, labelindexer, sql_transformer])
lr = LogisticRegression(maxIter=10, regParam=0.3, elasticNetParam=0.8)
pipeline = Pipeline(stages=indexer)
model =
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