org.apache.spark.ml.regression
AFTSurvivalRegressionModel 
            Companion object AFTSurvivalRegressionModel
          
      class AFTSurvivalRegressionModel extends RegressionModel[Vector, AFTSurvivalRegressionModel] with AFTSurvivalRegressionParams with MLWritable
Model produced by AFTSurvivalRegression.
- Annotations
 - @Since( "1.6.0" )
 - Source
 - AFTSurvivalRegression.scala
 
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- AFTSurvivalRegressionModel
 - MLWritable
 - AFTSurvivalRegressionParams
 - HasMaxBlockSizeInMB
 - HasAggregationDepth
 - HasFitIntercept
 - HasTol
 - HasMaxIter
 - RegressionModel
 - PredictionModel
 - PredictorParams
 - HasPredictionCol
 - HasFeaturesCol
 - HasLabelCol
 - Model
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        $[T](param: Param[T]): T
      
      
      
An alias for
getOrDefault().An alias for
getOrDefault().- Attributes
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        ==(arg0: Any): Boolean
      
      
      
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        final 
        val
      
      
        aggregationDepth: IntParam
      
      
      
Param for suggested depth for treeAggregate (>= 2).
Param for suggested depth for treeAggregate (>= 2).
- Definition Classes
 - HasAggregationDepth
 
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        final 
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        asInstanceOf[T0]: T0
      
      
      
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        final 
        val
      
      
        censorCol: Param[String]
      
      
      
Param for censor column name.
Param for censor column name. The value of this column could be 0 or 1. If the value is 1, it means the event has occurred i.e. uncensored; otherwise censored.
- Definition Classes
 - AFTSurvivalRegressionParams
 - Annotations
 - @Since( "1.6.0" )
 
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        final 
        def
      
      
        clear(param: Param[_]): AFTSurvivalRegressionModel.this.type
      
      
      
Clears the user-supplied value for the input param.
Clears the user-supplied value for the input param.
- Definition Classes
 - Params
 
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        def
      
      
        clone(): AnyRef
      
      
      
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        val
      
      
        coefficients: Vector
      
      
      
- Annotations
 - @Since( "2.0.0" )
 
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        def
      
      
        copy(extra: ParamMap): AFTSurvivalRegressionModel
      
      
      
Creates a copy of this instance with the same UID and some extra params.
Creates a copy of this instance with the same UID and some extra params. Subclasses should implement this method and set the return type properly. See
defaultCopy().- Definition Classes
 - AFTSurvivalRegressionModel → Model → Transformer → PipelineStage → Params
 - Annotations
 - @Since( "1.6.0" )
 
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        def
      
      
        copyValues[T <: Params](to: T, extra: ParamMap = ParamMap.empty): T
      
      
      
Copies param values from this instance to another instance for params shared by them.
Copies param values from this instance to another instance for params shared by them.
This handles default Params and explicitly set Params separately. Default Params are copied from and to
defaultParamMap, and explicitly set Params are copied from and toparamMap. Warning: This implicitly assumes that this Params instance and the target instance share the same set of default Params.- to
 the target instance, which should work with the same set of default Params as this source instance
- extra
 extra params to be copied to the target's
paramMap- returns
 the target instance with param values copied
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        final 
        def
      
      
        defaultCopy[T <: Params](extra: ParamMap): T
      
      
      
Default implementation of copy with extra params.
Default implementation of copy with extra params. It tries to create a new instance with the same UID. Then it copies the embedded and extra parameters over and returns the new instance.
- Attributes
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        eq(arg0: AnyRef): Boolean
      
      
      
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        def
      
      
        explainParam(param: Param[_]): String
      
      
      
Explains a param.
Explains a param.
- param
 input param, must belong to this instance.
- returns
 a string that contains the input param name, doc, and optionally its default value and the user-supplied value
- Definition Classes
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        def
      
      
        explainParams(): String
      
      
      
Explains all params of this instance.
Explains all params of this instance. See
explainParam().- Definition Classes
 - Params
 
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        final 
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        extractParamMap(): ParamMap
      
      
      
extractParamMapwith no extra values.extractParamMapwith no extra values.- Definition Classes
 - Params
 
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        final 
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        extractParamMap(extra: ParamMap): ParamMap
      
      
      
Extracts the embedded default param values and user-supplied values, and then merges them with extra values from input into a flat param map, where the latter value is used if there exist conflicts, i.e., with ordering: default param values less than user-supplied values less than extra.
Extracts the embedded default param values and user-supplied values, and then merges them with extra values from input into a flat param map, where the latter value is used if there exist conflicts, i.e., with ordering: default param values less than user-supplied values less than extra.
- Definition Classes
 - Params
 
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        final 
        val
      
      
        featuresCol: Param[String]
      
      
      
Param for features column name.
Param for features column name.
- Definition Classes
 - HasFeaturesCol
 
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        def
      
      
        featuresDataType: DataType
      
      
      
Returns the SQL DataType corresponding to the FeaturesType type parameter.
Returns the SQL DataType corresponding to the FeaturesType type parameter.
This is used by
validateAndTransformSchema(). This workaround is needed since SQL has different APIs for Scala and Java.The default value is VectorUDT, but it may be overridden if FeaturesType is not Vector.
- Attributes
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 - PredictionModel
 
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        def
      
      
        finalize(): Unit
      
      
      
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        final 
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        fitIntercept: BooleanParam
      
      
      
Param for whether to fit an intercept term.
Param for whether to fit an intercept term.
- Definition Classes
 - HasFitIntercept
 
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        final 
        def
      
      
        get[T](param: Param[T]): Option[T]
      
      
      
Optionally returns the user-supplied value of a param.
Optionally returns the user-supplied value of a param.
- Definition Classes
 - Params
 
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        final 
        def
      
      
        getAggregationDepth: Int
      
      
      
- Definition Classes
 - HasAggregationDepth
 
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        def
      
      
        getCensorCol: String
      
      
      
- Definition Classes
 - AFTSurvivalRegressionParams
 - Annotations
 - @Since( "1.6.0" )
 
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        final 
        def
      
      
        getClass(): Class[_]
      
      
      
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        final 
        def
      
      
        getDefault[T](param: Param[T]): Option[T]
      
      
      
Gets the default value of a parameter.
Gets the default value of a parameter.
- Definition Classes
 - Params
 
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        final 
        def
      
      
        getFeaturesCol: String
      
      
      
- Definition Classes
 - HasFeaturesCol
 
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        final 
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        getFitIntercept: Boolean
      
      
      
- Definition Classes
 - HasFitIntercept
 
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        final 
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        getLabelCol: String
      
      
      
- Definition Classes
 - HasLabelCol
 
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        final 
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        getMaxBlockSizeInMB: Double
      
      
      
- Definition Classes
 - HasMaxBlockSizeInMB
 
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        final 
        def
      
      
        getMaxIter: Int
      
      
      
- Definition Classes
 - HasMaxIter
 
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        final 
        def
      
      
        getOrDefault[T](param: Param[T]): T
      
      
      
Gets the value of a param in the embedded param map or its default value.
Gets the value of a param in the embedded param map or its default value. Throws an exception if neither is set.
- Definition Classes
 - Params
 
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        def
      
      
        getParam(paramName: String): Param[Any]
      
      
      
Gets a param by its name.
Gets a param by its name.
- Definition Classes
 - Params
 
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        final 
        def
      
      
        getPredictionCol: String
      
      
      
- Definition Classes
 - HasPredictionCol
 
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        def
      
      
        getQuantileProbabilities: Array[Double]
      
      
      
- Definition Classes
 - AFTSurvivalRegressionParams
 - Annotations
 - @Since( "1.6.0" )
 
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        def
      
      
        getQuantilesCol: String
      
      
      
- Definition Classes
 - AFTSurvivalRegressionParams
 - Annotations
 - @Since( "1.6.0" )
 
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        final 
        def
      
      
        getTol: Double
      
      
      
- Definition Classes
 - HasTol
 
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        final 
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        hasDefault[T](param: Param[T]): Boolean
      
      
      
Tests whether the input param has a default value set.
Tests whether the input param has a default value set.
- Definition Classes
 - Params
 
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        def
      
      
        hasParam(paramName: String): Boolean
      
      
      
Tests whether this instance contains a param with a given name.
Tests whether this instance contains a param with a given name.
- Definition Classes
 - Params
 
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        def
      
      
        hasParent: Boolean
      
      
      
Indicates whether this Model has a corresponding parent.
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        def
      
      
        hashCode(): Int
      
      
      
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        def
      
      
        initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
      
      
      
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        def
      
      
        initializeLogIfNecessary(isInterpreter: Boolean): Unit
      
      
      
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        val
      
      
        intercept: Double
      
      
      
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 - @Since( "1.6.0" )
 
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        final 
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        isDefined(param: Param[_]): Boolean
      
      
      
Checks whether a param is explicitly set or has a default value.
Checks whether a param is explicitly set or has a default value.
- Definition Classes
 - Params
 
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        final 
        def
      
      
        isInstanceOf[T0]: Boolean
      
      
      
- Definition Classes
 - Any
 
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        final 
        def
      
      
        isSet(param: Param[_]): Boolean
      
      
      
Checks whether a param is explicitly set.
Checks whether a param is explicitly set.
- Definition Classes
 - Params
 
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        def
      
      
        isTraceEnabled(): Boolean
      
      
      
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        final 
        val
      
      
        labelCol: Param[String]
      
      
      
Param for label column name.
Param for label column name.
- Definition Classes
 - HasLabelCol
 
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        def
      
      
        log: Logger
      
      
      
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        def
      
      
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        def
      
      
        logName: String
      
      
      
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        def
      
      
        logTrace(msg: ⇒ String, throwable: Throwable): Unit
      
      
      
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        def
      
      
        logTrace(msg: ⇒ String): Unit
      
      
      
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        def
      
      
        logWarning(msg: ⇒ String, throwable: Throwable): Unit
      
      
      
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        def
      
      
        logWarning(msg: ⇒ String): Unit
      
      
      
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        final 
        val
      
      
        maxBlockSizeInMB: DoubleParam
      
      
      
Param for Maximum memory in MB for stacking input data into blocks.
Param for Maximum memory in MB for stacking input data into blocks. Data is stacked within partitions. If more than remaining data size in a partition then it is adjusted to the data size. Default 0.0 represents choosing optimal value, depends on specific algorithm. Must be >= 0..
- Definition Classes
 - HasMaxBlockSizeInMB
 
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        final 
        val
      
      
        maxIter: IntParam
      
      
      
Param for maximum number of iterations (>= 0).
Param for maximum number of iterations (>= 0).
- Definition Classes
 - HasMaxIter
 
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        final 
        def
      
      
        ne(arg0: AnyRef): Boolean
      
      
      
- Definition Classes
 - AnyRef
 
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        final 
        def
      
      
        notify(): Unit
      
      
      
- Definition Classes
 - AnyRef
 - Annotations
 - @native()
 
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        final 
        def
      
      
        notifyAll(): Unit
      
      
      
- Definition Classes
 - AnyRef
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        def
      
      
        numFeatures: Int
      
      
      
Returns the number of features the model was trained on.
Returns the number of features the model was trained on. If unknown, returns -1
- Definition Classes
 - AFTSurvivalRegressionModel → PredictionModel
 - Annotations
 - @Since( "3.0.0" )
 
 - 
      
      
      
        
      
    
      
        
        lazy val
      
      
        params: Array[Param[_]]
      
      
      
Returns all params sorted by their names.
Returns all params sorted by their names. The default implementation uses Java reflection to list all public methods that have no arguments and return Param.
- Definition Classes
 - Params
 - Note
 Developer should not use this method in constructor because we cannot guarantee that this variable gets initialized before other params.
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        var
      
      
        parent: Estimator[AFTSurvivalRegressionModel]
      
      
      
The parent estimator that produced this model.
The parent estimator that produced this model.
- Definition Classes
 - Model
 - Note
 For ensembles' component Models, this value can be null.
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        def
      
      
        predict(features: Vector): Double
      
      
      
Predict label for the given features.
Predict label for the given features. This method is used to implement
transform()and output predictionCol.- Definition Classes
 - AFTSurvivalRegressionModel → PredictionModel
 - Annotations
 - @Since( "2.0.0" )
 
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        def
      
      
        predictQuantiles(features: Vector): Vector
      
      
      
- Annotations
 - @Since( "2.0.0" )
 
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        final 
        val
      
      
        predictionCol: Param[String]
      
      
      
Param for prediction column name.
Param for prediction column name.
- Definition Classes
 - HasPredictionCol
 
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        final 
        val
      
      
        quantileProbabilities: DoubleArrayParam
      
      
      
Param for quantile probabilities array.
Param for quantile probabilities array. Values of the quantile probabilities array should be in the range (0, 1) and the array should be non-empty.
- Definition Classes
 - AFTSurvivalRegressionParams
 - Annotations
 - @Since( "1.6.0" )
 
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        final 
        val
      
      
        quantilesCol: Param[String]
      
      
      
Param for quantiles column name.
Param for quantiles column name. This column will output quantiles of corresponding quantileProbabilities if it is set.
- Definition Classes
 - AFTSurvivalRegressionParams
 - Annotations
 - @Since( "1.6.0" )
 
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        def
      
      
        save(path: String): Unit
      
      
      
Saves this ML instance to the input path, a shortcut of
write.save(path).Saves this ML instance to the input path, a shortcut of
write.save(path).- Definition Classes
 - MLWritable
 - Annotations
 - @Since( "1.6.0" ) @throws( ... )
 
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        val
      
      
        scale: Double
      
      
      
- Annotations
 - @Since( "1.6.0" )
 
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        final 
        def
      
      
        set(paramPair: ParamPair[_]): AFTSurvivalRegressionModel.this.type
      
      
      
Sets a parameter in the embedded param map.
Sets a parameter in the embedded param map.
- Attributes
 - protected
 - Definition Classes
 - Params
 
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        final 
        def
      
      
        set(param: String, value: Any): AFTSurvivalRegressionModel.this.type
      
      
      
Sets a parameter (by name) in the embedded param map.
Sets a parameter (by name) in the embedded param map.
- Attributes
 - protected
 - Definition Classes
 - Params
 
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        final 
        def
      
      
        set[T](param: Param[T], value: T): AFTSurvivalRegressionModel.this.type
      
      
      
Sets a parameter in the embedded param map.
Sets a parameter in the embedded param map.
- Definition Classes
 - Params
 
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        final 
        def
      
      
        setDefault(paramPairs: ParamPair[_]*): AFTSurvivalRegressionModel.this.type
      
      
      
Sets default values for a list of params.
Sets default values for a list of params.
Note: Java developers should use the single-parameter
setDefault. Annotating this with varargs can cause compilation failures due to a Scala compiler bug. See SPARK-9268.- paramPairs
 a list of param pairs that specify params and their default values to set respectively. Make sure that the params are initialized before this method gets called.
- Attributes
 - protected
 - Definition Classes
 - Params
 
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        final 
        def
      
      
        setDefault[T](param: Param[T], value: T): AFTSurvivalRegressionModel.this.type
      
      
      
Sets a default value for a param.
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        def
      
      
        setFeaturesCol(value: String): AFTSurvivalRegressionModel
      
      
      
- Definition Classes
 - PredictionModel
 
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        def
      
      
        setParent(parent: Estimator[AFTSurvivalRegressionModel]): AFTSurvivalRegressionModel
      
      
      
Sets the parent of this model (Java API).
Sets the parent of this model (Java API).
- Definition Classes
 - Model
 
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        def
      
      
        setPredictionCol(value: String): AFTSurvivalRegressionModel
      
      
      
- Definition Classes
 - PredictionModel
 
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        def
      
      
        setQuantileProbabilities(value: Array[Double]): AFTSurvivalRegressionModel.this.type
      
      
      
- Annotations
 - @Since( "1.6.0" )
 
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        def
      
      
        setQuantilesCol(value: String): AFTSurvivalRegressionModel.this.type
      
      
      
- Annotations
 - @Since( "1.6.0" )
 
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        final 
        def
      
      
        synchronized[T0](arg0: ⇒ T0): T0
      
      
      
- Definition Classes
 - AnyRef
 
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        def
      
      
        toString(): String
      
      
      
- Definition Classes
 - AFTSurvivalRegressionModel → Identifiable → AnyRef → Any
 - Annotations
 - @Since( "3.0.0" )
 
 - 
      
      
      
        
      
    
      
        final 
        val
      
      
        tol: DoubleParam
      
      
      
Param for the convergence tolerance for iterative algorithms (>= 0).
Param for the convergence tolerance for iterative algorithms (>= 0).
- Definition Classes
 - HasTol
 
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        def
      
      
        transform(dataset: Dataset[_]): DataFrame
      
      
      
Transforms dataset by reading from featuresCol, calling
predict, and storing the predictions as a new column predictionCol.Transforms dataset by reading from featuresCol, calling
predict, and storing the predictions as a new column predictionCol.- dataset
 input dataset
- returns
 transformed dataset with predictionCol of type
Double
- Definition Classes
 - AFTSurvivalRegressionModel → PredictionModel → Transformer
 - Annotations
 - @Since( "2.0.0" )
 
 - 
      
      
      
        
      
    
      
        
        def
      
      
        transform(dataset: Dataset[_], paramMap: ParamMap): DataFrame
      
      
      
Transforms the dataset with provided parameter map as additional parameters.
Transforms the dataset with provided parameter map as additional parameters.
- dataset
 input dataset
- paramMap
 additional parameters, overwrite embedded params
- returns
 transformed dataset
- Definition Classes
 - Transformer
 - Annotations
 - @Since( "2.0.0" )
 
 - 
      
      
      
        
      
    
      
        
        def
      
      
        transform(dataset: Dataset[_], firstParamPair: ParamPair[_], otherParamPairs: ParamPair[_]*): DataFrame
      
      
      
Transforms the dataset with optional parameters
Transforms the dataset with optional parameters
- dataset
 input dataset
- firstParamPair
 the first param pair, overwrite embedded params
- otherParamPairs
 other param pairs, overwrite embedded params
- returns
 transformed dataset
- Definition Classes
 - Transformer
 - Annotations
 - @Since( "2.0.0" ) @varargs()
 
 - 
      
      
      
        
      
    
      
        
        def
      
      
        transformImpl(dataset: Dataset[_]): DataFrame
      
      
      
- Attributes
 - protected
 - Definition Classes
 - PredictionModel
 
 - 
      
      
      
        
      
    
      
        
        def
      
      
        transformSchema(schema: StructType): StructType
      
      
      
Check transform validity and derive the output schema from the input schema.
Check transform validity and derive the output schema from the input schema.
We check validity for interactions between parameters during
transformSchemaand raise an exception if any parameter value is invalid. Parameter value checks which do not depend on other parameters are handled byParam.validate().Typical implementation should first conduct verification on schema change and parameter validity, including complex parameter interaction checks.
- Definition Classes
 - AFTSurvivalRegressionModel → PredictionModel → PipelineStage
 - Annotations
 - @Since( "1.6.0" )
 
 - 
      
      
      
        
      
    
      
        
        def
      
      
        transformSchema(schema: StructType, logging: Boolean): StructType
      
      
      
:: DeveloperApi ::
:: DeveloperApi ::
Derives the output schema from the input schema and parameters, optionally with logging.
This should be optimistic. If it is unclear whether the schema will be valid, then it should be assumed valid until proven otherwise.
- Attributes
 - protected
 - Definition Classes
 - PipelineStage
 - Annotations
 - @DeveloperApi()
 
 - 
      
      
      
        
      
    
      
        
        val
      
      
        uid: String
      
      
      
An immutable unique ID for the object and its derivatives.
An immutable unique ID for the object and its derivatives.
- Definition Classes
 - AFTSurvivalRegressionModel → Identifiable
 - Annotations
 - @Since( "1.6.0" )
 
 - 
      
      
      
        
      
    
      
        
        def
      
      
        validateAndTransformSchema(schema: StructType, fitting: Boolean): StructType
      
      
      
Validates and transforms the input schema with the provided param map.
Validates and transforms the input schema with the provided param map.
- schema
 input schema
- fitting
 whether this is in fitting or prediction
- returns
 output schema
- Attributes
 - protected
 - Definition Classes
 - AFTSurvivalRegressionParams
 
 - 
      
      
      
        
      
    
      
        
        def
      
      
        validateAndTransformSchema(schema: StructType, fitting: Boolean, featuresDataType: DataType): StructType
      
      
      
Validates and transforms the input schema with the provided param map.
Validates and transforms the input schema with the provided param map.
- schema
 input schema
- fitting
 whether this is in fitting
- featuresDataType
 SQL DataType for FeaturesType. E.g.,
VectorUDTfor vector features.- returns
 output schema
- Attributes
 - protected
 - Definition Classes
 - PredictorParams
 
 - 
      
      
      
        
      
    
      
        final 
        def
      
      
        wait(): Unit
      
      
      
- Definition Classes
 - AnyRef
 - Annotations
 - @throws( ... )
 
 - 
      
      
      
        
      
    
      
        final 
        def
      
      
        wait(arg0: Long, arg1: Int): Unit
      
      
      
- Definition Classes
 - AnyRef
 - Annotations
 - @throws( ... )
 
 - 
      
      
      
        
      
    
      
        final 
        def
      
      
        wait(arg0: Long): Unit
      
      
      
- Definition Classes
 - AnyRef
 - Annotations
 - @throws( ... ) @native()
 
 - 
      
      
      
        
      
    
      
        
        def
      
      
        write: MLWriter
      
      
      
Returns an
MLWriterinstance for this ML instance.Returns an
MLWriterinstance for this ML instance.- Definition Classes
 - AFTSurvivalRegressionModel → MLWritable
 - Annotations
 - @Since( "1.6.0" )
 
 
Inherited from MLWritable
Inherited from AFTSurvivalRegressionParams
Inherited from HasMaxBlockSizeInMB
Inherited from HasAggregationDepth
Inherited from HasFitIntercept
Inherited from HasTol
Inherited from HasMaxIter
Inherited from RegressionModel[Vector, AFTSurvivalRegressionModel]
Inherited from PredictionModel[Vector, AFTSurvivalRegressionModel]
Inherited from PredictorParams
Inherited from HasPredictionCol
Inherited from HasFeaturesCol
Inherited from HasLabelCol
Inherited from Model[AFTSurvivalRegressionModel]
Inherited from Transformer
Inherited from PipelineStage
Inherited from Logging
Inherited from Params
Inherited from Serializable
Inherited from Serializable
Inherited from Identifiable
Inherited from AnyRef
Inherited from Any
Parameters
A list of (hyper-)parameter keys this algorithm can take. Users can set and get the parameter values through setters and getters, respectively.
Members
Parameter setters
Parameter getters
(expert-only) Parameters
A list of advanced, expert-only (hyper-)parameter keys this algorithm can take. Users can set and get the parameter values through setters and getters, respectively.