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object Regression extends ModelFactory

The Regression companion object provides factory apply functions and a testing method.

Linear Supertypes
ModelFactory, Error, AnyRef, Any
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  1. Regression
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Value Members

  1. def allForms(x: MatriD): MatriD

    Create all forms/terms for each row/point placing them in a new matrix.

    Create all forms/terms for each row/point placing them in a new matrix.

    x

    the original un-expanded input/data matrix

    Definition Classes
    ModelFactory
  2. def apply(x: MatriD, y: VectoD, fname: Strings, hparam: HyperParameter, technique: RegTechnique.RegTechnique): Regression

    Create a Regression object from a data matrix and a response vector.

    Create a Regression object from a data matrix and a response vector. This factory function provides data rescaling.

    x

    the data/input m-by-n matrix (augment with a first column of ones to include intercept in model)

    y

    the response/output m-vector

    fname

    the feature/variable names (use null for default)

    hparam

    the hyper-parameters (use null for default)

    technique

    the technique used to solve for b in x.t*x*b = x.t*y (use OR for default)

    See also

    ModelFactory

  3. def apply(xy: MatriD, fname: Strings = null, hparam: HyperParameter = null, technique: RegTechnique.RegTechnique = QR): Regression

    Create a Regression object from a combined data-response matrix.

    Create a Regression object from a combined data-response matrix. The last column is assumed to be the response column.

    xy

    the combined data-response matrix (predictors and response)

    fname

    the feature/variable names

    hparam

    the hyper-parameters

    technique

    the technique used to solve for b in x.t*x*b = x.t*y

  4. val drp: (Null, Null, RegTechnique.Value)
  5. final def flaw(method: String, message: String): Unit
    Definition Classes
    Error
  6. def forms(xi: VectoD, k: Int, nt: Int): VectoD

    Given a vector/point 'v', compute the values for all of its forms/terms, returning them as a vector (assumes Regression with intercept).

    Given a vector/point 'v', compute the values for all of its forms/terms, returning them as a vector (assumes Regression with intercept). Override for expanded columns, e.g., QuadRegression.

    xi

    the vector/point (i-th row of x) for creating forms/terms

    k

    the number of features/predictor variables (not counting intercept)

    nt

    the number of terms

    Definition Classes
    ModelFactory
  7. def numTerms(k: Int): Int

    The number of terms/parameters in the model (assumes Regression with intercept.

    The number of terms/parameters in the model (assumes Regression with intercept. Override for expanded columns, e.g., QuadRegression.

    k

    the number of features/predictor variables (not counting intercept)

    Definition Classes
    ModelFactory
  8. def rescaleOff(): Unit

    Turn rescaling off.

    Turn rescaling off.

    Definition Classes
    ModelFactory
  9. def rescaleOn(): Unit

    Turn rescaling on.

    Turn rescaling on.

    Definition Classes
    ModelFactory
  10. def test(x: MatriD, y: VectoD, z: VectoD, fname: Strings = null): Unit

    Test the various regression techniques.

    Test the various regression techniques.

    x

    the data/input matrix

    y

    the response/output vector

    z

    a vector to predict

    fname

    the names of features/variable