com.eharmony.aloha.models.reg

OptToKv

final class OptToKv[A] extends AnyVal

Provides an extension method toKv to convert Options to Seq[(String, Double)]. This is used to coerce the value to the type that is used in regression models. We don't do an implicit conversion method from Option[A] to Iterable[(String, Double)] because it can negatively impact type inference. So we make the users convert explicitly via:

val option: Option[Int] = Option(1)
val iterable = option.toKv
require(iterable == List(("", 1d)))
A

the type of Option.

Linear Supertypes
AnyVal, NotNull, Any
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Instance Constructors

  1. new OptToKv(a: Option[A])

    a

    an Option

Value Members

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

    Definition Classes
    Any

  2. final def ##(): Int

    Definition Classes
    Any

  3. final def ==(arg0: Any): Boolean

    Definition Classes
    Any

  4. val a: Option[A]

    an Option

  5. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  6. def getClass(): Class[_ <: AnyVal]

    Definition Classes
    AnyVal → Any

  7. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  8. def toKv(implicit f: (A) ⇒ Double): Seq[(String, Double)]

    Convert to Seq[(String, Double)].

    Convert to Seq[(String, Double)]. If a is None, return Nil. Otherwise, return ("", f(x)) :: Nil.

    f

    function to convert A to Double.

    returns

    a sequence

  9. def toString(): String

    Definition Classes
    Any

Inherited from AnyVal

Inherited from NotNull

Inherited from Any

Ungrouped