Packages

case class Variable(xj: VectoD, j: Int, kind: VariableKind.VariableKind = Continuous, name_: String = null, concept: String = null) extends Product with Serializable

The Variable class provides meta-data for a variable including its kind, distinct values, name and optional ontological concept. The variable may be an input variable (feature) or an output variable (response). Typically, it represents a column 'xj' in a data matrix. --------------------------------------------------------------------------- Several modeling techniques such as decision trees need to divide the values into groups, e.g., for branch values: When 'xj' is categorical, these will be all its distinct values. Otherwise, these will be 0 (up to threshold) or 1 (above threshold).

xj

the column vector (feature/response)

j

the index position within the relevant data matrix

kind

indication of the variable kind

concept

an optional URI for an optological concept

See also

classifier.Node for 'threshold'

Linear Supertypes
Serializable, Product, Equals, AnyRef, Any
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Instance Constructors

  1. new Variable(xj: VectoD, j: Int, kind: VariableKind.VariableKind = Continuous, name_: String = null, concept: String = null)

    xj

    the column vector (feature/response)

    j

    the index position within the relevant data matrix

    kind

    indication of the variable kind

    concept

    an optional URI for an optological concept

Value Members

  1. val concept: String
  2. val j: Int
  3. val kind: VariableKind.VariableKind
  4. val name: String
  5. val name_: String
  6. def productElementNames: Iterator[String]
    Definition Classes
    Product
  7. val values: VectoI
  8. val xj: VectoD