Class/Object

com.microsoft.ml.spark

SelectColumns

Related Docs: object SelectColumns | package spark

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class SelectColumns extends Transformer with Wrappable with DefaultParamsWritable

SelectColumns takes a dataframe and a list of columns to select as input and returns a dataframe comprised of only those columns listed in the input list.

The columns to be selected is a list of column names

Linear Supertypes
DefaultParamsWritable, MLWritable, Wrappable, Transformer, PipelineStage, org.apache.spark.internal.Logging, Params, Serializable, Serializable, Identifiable, AnyRef, Any
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Inherited
  1. SelectColumns
  2. DefaultParamsWritable
  3. MLWritable
  4. Wrappable
  5. Transformer
  6. PipelineStage
  7. Logging
  8. Params
  9. Serializable
  10. Serializable
  11. Identifiable
  12. AnyRef
  13. Any
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Visibility
  1. Public
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Instance Constructors

  1. new SelectColumns()

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  2. new SelectColumns(uid: String)

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Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any
  3. final def $[T](param: Param[T]): T

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    Attributes
    protected
    Definition Classes
    Params
  4. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  5. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  6. final def clear(param: Param[_]): SelectColumns.this.type

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    Definition Classes
    Params
  7. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  8. val cols: StringArrayParam

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  9. def copy(extra: ParamMap): SelectColumns

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    Definition Classes
    SelectColumns → Transformer → PipelineStage → Params
  10. def copyValues[T <: Params](to: T, extra: ParamMap): T

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    Attributes
    protected
    Definition Classes
    Params
  11. final def defaultCopy[T <: Params](extra: ParamMap): T

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    Attributes
    protected
    Definition Classes
    Params
  12. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  13. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  14. def explainParam(param: Param[_]): String

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    Definition Classes
    Params
  15. def explainParams(): String

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    Definition Classes
    Params
  16. final def extractParamMap(): ParamMap

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    Definition Classes
    Params
  17. final def extractParamMap(extra: ParamMap): ParamMap

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    Definition Classes
    Params
  18. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  19. final def get[T](param: Param[T]): Option[T]

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    Definition Classes
    Params
  20. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  21. final def getCols: Array[String]

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  22. final def getDefault[T](param: Param[T]): Option[T]

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    Definition Classes
    Params
  23. final def getOrDefault[T](param: Param[T]): T

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    Definition Classes
    Params
  24. def getParam(paramName: String): Param[Any]

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    Definition Classes
    Params
  25. final def hasDefault[T](param: Param[T]): Boolean

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    Definition Classes
    Params
  26. def hasParam(paramName: String): Boolean

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    Definition Classes
    Params
  27. def hashCode(): Int

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    Definition Classes
    AnyRef → Any
  28. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean

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    Attributes
    protected
    Definition Classes
    Logging
  29. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  30. final def isDefined(param: Param[_]): Boolean

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    Definition Classes
    Params
  31. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  32. final def isSet(param: Param[_]): Boolean

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    Definition Classes
    Params
  33. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging
  34. def log: Logger

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    Attributes
    protected
    Definition Classes
    Logging
  35. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  36. def logDebug(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  37. def logError(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
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    Logging
  38. def logError(msg: ⇒ String): Unit

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    Attributes
    protected
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    Logging
  39. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
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    Logging
  40. def logInfo(msg: ⇒ String): Unit

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    Attributes
    protected
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    Logging
  41. def logName: String

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    Attributes
    protected
    Definition Classes
    Logging
  42. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  43. def logTrace(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  44. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  45. def logWarning(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  46. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  47. final def notify(): Unit

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    Definition Classes
    AnyRef
  48. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
  49. lazy val params: Array[Param[_]]

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    Definition Classes
    Params
  50. def save(path: String): Unit

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    Definition Classes
    MLWritable
    Annotations
    @Since( "1.6.0" ) @throws( ... )
  51. final def set(paramPair: ParamPair[_]): SelectColumns.this.type

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    Attributes
    protected
    Definition Classes
    Params
  52. final def set(param: String, value: Any): SelectColumns.this.type

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    Attributes
    protected
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    Params
  53. final def set[T](param: Param[T], value: T): SelectColumns.this.type

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    Definition Classes
    Params
  54. def setCol(value: String): SelectColumns.this.type

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  55. def setCols(value: Array[String]): SelectColumns.this.type

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  56. final def setDefault(paramPairs: ParamPair[_]*): SelectColumns.this.type

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    Attributes
    protected
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    Params
  57. final def setDefault[T](param: Param[T], value: T): SelectColumns.this.type

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    Attributes
    protected
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    Params
  58. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  59. def toString(): String

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    Definition Classes
    Identifiable → AnyRef → Any
  60. def transform(dataset: Dataset[_]): DataFrame

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    dataset

    - The input dataset, to be transformed

    returns

    The DataFrame that results from column selection

    Definition Classes
    SelectColumns → Transformer
  61. def transform(dataset: Dataset[_], paramMap: ParamMap): DataFrame

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    Definition Classes
    Transformer
    Annotations
    @Since( "2.0.0" )
  62. def transform(dataset: Dataset[_], firstParamPair: ParamPair[_], otherParamPairs: ParamPair[_]*): DataFrame

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    Definition Classes
    Transformer
    Annotations
    @Since( "2.0.0" ) @varargs()
  63. def transformSchema(schema: StructType): StructType

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    Definition Classes
    SelectColumns → PipelineStage
  64. def transformSchema(schema: StructType, logging: Boolean): StructType

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    Attributes
    protected
    Definition Classes
    PipelineStage
    Annotations
    @DeveloperApi()
  65. val uid: String

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    Definition Classes
    SelectColumns → Identifiable
  66. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  67. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
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    Annotations
    @throws( ... )
  68. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  69. def write: MLWriter

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    Definition Classes
    DefaultParamsWritable → MLWritable

Inherited from DefaultParamsWritable

Inherited from MLWritable

Inherited from Wrappable

Inherited from Transformer

Inherited from PipelineStage

Inherited from org.apache.spark.internal.Logging

Inherited from Params

Inherited from Serializable

Inherited from Serializable

Inherited from Identifiable

Inherited from AnyRef

Inherited from Any

Parameter setters

Parameter getters

Members