hex.glm

Class ComputationState.GramXY

java.lang.Object

hex.glm.ComputationState.GramXY

Enclosing class:

ComputationState

public static final class ComputationState.GramXY
extends java.lang.Object

Cached state of COD (with covariate updates) solver.

Field Summary

Fields

Modifier and Type	Field and Description
Gram	gram
double	likelihood
double	sumOfRowWeights
double[]	xy
double	yy

Constructor Summary

Constructors

Constructor and Description
GramXY(Gram gram, double[] xy, double[] grads, double[] beta, int[] activeCols, int[] newActiveCols, double yy, double likelihood)

Method Summary

Modifier and Type	Method and Description
static ComputationState.GramXY	addCols(double[] beta, int[] newActiveCols, int[] newColsIds, ComputationState.GramXY oldGram, double[][] xxUpdate, double[] xyUpdate)
double[]	getCODGradients()
boolean	match(double[] beta, int[] activeCols)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

gram

public final Gram gram

xy

public final double[] xy

yy

public double yy

likelihood

public final double likelihood

sumOfRowWeights

public double sumOfRowWeights

Constructor Detail

GramXY

public GramXY(Gram gram,
              double[] xy,
              double[] grads,
              double[] beta,
              int[] activeCols,
              int[] newActiveCols,
              double yy,
              double likelihood)

Method Detail

getCODGradients

public final double[] getCODGradients()

match

public boolean match(double[] beta,
                     int[] activeCols)

addCols

public static ComputationState.GramXY addCols(double[] beta,
                                              int[] newActiveCols,
                                              int[] newColsIds,
                                              ComputationState.GramXY oldGram,
                                              double[][] xxUpdate,
                                              double[] xyUpdate)