# RegressionMetrics

#### class RegressionMetrics extends Logging

:: Experimental :: Evaluator for regression.

Annotations
()
Linear Supertypes
Logging, AnyRef, Any
Ordering
1. Alphabetic
2. By inheritance
Inherited
1. RegressionMetrics
2. Logging
3. AnyRef
4. Any
1. Hide All
2. Show all
Visibility
1. Public
2. All

### Instance Constructors

1. #### new RegressionMetrics(predictionAndObservations: RDD[(Double, Double)])

predictionAndObservations

an RDD of (prediction, observation) pairs.

### Value Members

1. #### final def !=(arg0: AnyRef): Boolean

Definition Classes
AnyRef
2. #### final def !=(arg0: Any): Boolean

Definition Classes
Any
3. #### final def ##(): Int

Definition Classes
AnyRef → Any
4. #### final def ==(arg0: AnyRef): Boolean

Definition Classes
AnyRef
5. #### final def ==(arg0: Any): Boolean

Definition Classes
Any
6. #### final def asInstanceOf[T0]: T0

Definition Classes
Any
7. #### def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
8. #### final def eq(arg0: AnyRef): Boolean

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

Definition Classes
AnyRef → Any
10. #### def explainedVariance: Double

Returns the explained variance regression score.

Returns the explained variance regression score. explainedVariance = 1 - variance(y - \hat{y}) / variance(y) Reference: http://en.wikipedia.org/wiki/Explained_variation

11. #### def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
12. #### final def getClass(): Class[_]

Definition Classes
AnyRef → Any
13. #### def hashCode(): Int

Definition Classes
AnyRef → Any
14. #### final def isInstanceOf[T0]: Boolean

Definition Classes
Any
15. #### def isTraceEnabled(): Boolean

Attributes
protected
Definition Classes
Logging
16. #### def log: Logger

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

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

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

Attributes
protected
Definition Classes
Logging
20. #### def logError(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
21. #### def logInfo(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
22. #### def logInfo(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
23. #### def logName: String

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

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

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

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

Attributes
protected
Definition Classes
Logging
28. #### def meanAbsoluteError: Double

Returns the mean absolute error, which is a risk function corresponding to the expected value of the absolute error loss or l1-norm loss.

29. #### def meanSquaredError: Double

Returns the mean squared error, which is a risk function corresponding to the expected value of the squared error loss or quadratic loss.

30. #### final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
31. #### final def notify(): Unit

Definition Classes
AnyRef
32. #### final def notifyAll(): Unit

Definition Classes
AnyRef
33. #### def r2: Double

Returns R2, the coefficient of determination.

Returns R2, the coefficient of determination. Reference: http://en.wikipedia.org/wiki/Coefficient_of_determination

34. #### def rootMeanSquaredError: Double

Returns the root mean squared error, which is defined as the square root of the mean squared error.

35. #### final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
36. #### def toString(): String

Definition Classes
AnyRef → Any
37. #### final def wait(): Unit

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

Definition Classes
AnyRef
Annotations
@throws( ... )
39. #### final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )