hex.glm

Class GLMModel

java.lang.Object

water.Iced<T>

water.Keyed<T>

water.Lockable<M>

hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

hex.glm.GLMModel

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, water.Freezable<GLMModel>

public class GLMModel
extends hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

Created by tomasnykodym on 8/27/14.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GLMModel.GLMOutput
static class	GLMModel.GLMParameters
static class	GLMModel.GLMWeights
static class	GLMModel.GLMWeightsFun
static class	GLMModel.RegularizationPath
static class	GLMModel.Submodel

Nested classes/interfaces inherited from class hex.Model

hex.Model.BigScore, hex.Model.DeepFeatures, hex.Model.ExemplarMembers, hex.Model.GetMostImportantFeatures, hex.Model.GLRMArchetypes, hex.Model.GridSortBy, hex.Model.InteractionPair, hex.Model.JavaModelStreamWriter, hex.Model.LeafNodeAssignment, hex.Model.Output, hex.Model.Parameters

Field Summary

Fields

Modifier and Type	Field and Description
double	_lambda_max
long	_nobs
long	_nullDOF
double[]	_ymu
double	_ySigma

Fields inherited from class hex.Model

_dist, _output, _parms, _toDelete, _warnings, scoringInfo

Fields inherited from class water.Lockable

_lockers

Fields inherited from class water.Keyed

_key

Constructor Summary

Constructors

Constructor and Description
GLMModel(water.Key selfKey, GLMModel.GLMParameters parms, GLM job, double[] ymu, double ySigma, double lambda_max, long nobs)

Method Summary

Methods

Modifier and Type	Method and Description
GLMModel	addSubmodel(GLMModel.Submodel sm)
protected double[]	beta_internal()
double[]	beta_std(double lambda)
double[]	beta()
double[]	beta(double lambda)
long	checksum_impl()
GLMModel	clone2()
java.util.HashMap<java.lang.String,java.lang.Double>	coefficients() get beta coefficients in a map indexed by name
double	deviance(double w, double y, double f)
DataInfo	dinfo()
water.util.TwoDimTable	generateSummary(water.Key train, int iter) Re-do the TwoDim table generation with updated model.
GLMMojoWriter	getMojo()
GLMModel.RegularizationPath	getRegularizationPath()
hex.ModelMetrics.MetricBuilder	makeMetricBuilder(java.lang.String[] domain)
java.lang.String[]	makeScoringNames()
java.lang.String[]	names()
protected water.fvec.Frame	predictScoreImpl(water.fvec.Frame fr, water.fvec.Frame adaptFrm, java.lang.String destination_key, water.Job j, boolean computeMetrics) Score an already adapted frame.
protected double[]	score0(double[] data, double[] preds)
protected double[]	score0(double[] data, double[] preds, double o)
protected hex.ModelMetrics.MetricBuilder	scoreMetrics(water.fvec.Frame adaptFrm) Score an already adapted frame.
protected java.lang.String[][]	scoringDomains()
void	setVcov(double[][] inv)
void	setZValues(double[] zValues, double dispersion, boolean dispersionEstimated)
protected boolean	toJavaCheckTooBig()
protected water.util.SBPrintStream	toJavaInit(water.util.SBPrintStream sb, water.codegen.CodeGeneratorPipeline fileCtx)
protected void	toJavaPredictBody(water.util.SBPrintStream body, water.codegen.CodeGeneratorPipeline classCtx, water.codegen.CodeGeneratorPipeline fileCtx, boolean verboseCode)
void	update(double[] beta, double devianceTrain, double devianceTest, int iter)
GLMModel	updateSubmodel(GLMModel.Submodel sm)

Methods inherited from class hex.Model

adaptTestForTrain, adaptTestForTrain, addMetrics, addModelMetrics, addWarning, auc, classification_error, cleanup_adapt, closeBigScorePredict, compareTo, computeDeviances, data, defaultThreshold, deleteCrossValidationModels, deviance, fillScoringInfo, getDefaultGridSortBy, getToEigenVec, isSupervised, last_scored, lift_top_group, logloss, loss, mae, makeBigScoreTask, makeInteraction, makeInteractions, makeInteractions, makeSchema, mean_per_class_error, mse, postProcessPredictions, readAll_impl, remove_impl, rmsle, score, score, score, score, score, score0, score0, scoring_history, setupBigScorePredict, testJavaScoring, testJavaScoring, testJavaScoring, toJava, toJava, toJava, toJavaNCLASSES, toJavaPROB, toJavaSuper, toString, writeAll_impl

Methods inherited from class water.Lockable

delete_and_lock, delete_and_lock, delete_and_lock, delete, delete, delete, read_lock, read_lock, read_lock, unlock_all, unlock, unlock, unlock, unlock, update, update, update, write_lock, write_lock, write_lock

Methods inherited from class water.Keyed

checksum, readAll, remove, remove, remove, remove, writeAll

Methods inherited from class water.Iced

asBytes, clone, copyOver, frozenType, read, readExternal, readJSON, reloadFromBytes, toJsonString, write, writeExternal, writeJSON

Methods inherited from class java.lang.Object

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

Field Detail

_lambda_max

public final double _lambda_max

_ymu

public final double[] _ymu

_nullDOF

public final long _nullDOF

_ySigma

public final double _ySigma

_nobs

public final long _nobs

Constructor Detail

GLMModel

public GLMModel(water.Key selfKey,
        GLMModel.GLMParameters parms,
        GLM job,
        double[] ymu,
        double ySigma,
        double lambda_max,
        long nobs)

Method Detail

setVcov

public void setVcov(double[][] inv)

getRegularizationPath

public GLMModel.RegularizationPath getRegularizationPath()

toJavaCheckTooBig

protected boolean toJavaCheckTooBig()

Overrides:

toJavaCheckTooBig in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

dinfo

public DataInfo dinfo()

makeMetricBuilder

public hex.ModelMetrics.MetricBuilder makeMetricBuilder(java.lang.String[] domain)

Specified by:

makeMetricBuilder in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

beta_internal

protected double[] beta_internal()

beta

public double[] beta()

beta

public double[] beta(double lambda)

beta_std

public double[] beta_std(double lambda)

names

public java.lang.String[] names()

deviance

public double deviance(double w,
              double y,
              double f)

Overrides:

deviance in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

addSubmodel

public GLMModel addSubmodel(GLMModel.Submodel sm)

updateSubmodel

public GLMModel updateSubmodel(GLMModel.Submodel sm)

update

public void update(double[] beta,
          double devianceTrain,
          double devianceTest,
          int iter)

clone2

public GLMModel clone2()

scoringDomains

protected java.lang.String[][] scoringDomains()

Overrides:

scoringDomains in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

setZValues

public void setZValues(double[] zValues,
              double dispersion,
              boolean dispersionEstimated)

coefficients

public java.util.HashMap<java.lang.String,java.lang.Double> coefficients()

get beta coefficients in a map indexed by name

Returns:

the estimated coefficients

generateSummary

public water.util.TwoDimTable generateSummary(water.Key train,
                                     int iter)

Re-do the TwoDim table generation with updated model.

checksum_impl

public long checksum_impl()

Overrides:

checksum_impl in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

score0

protected double[] score0(double[] data,
              double[] preds)

Specified by:

score0 in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

score0

protected double[] score0(double[] data,
              double[] preds,
              double o)

Overrides:

score0 in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

toJavaPredictBody

protected void toJavaPredictBody(water.util.SBPrintStream body,
                     water.codegen.CodeGeneratorPipeline classCtx,
                     water.codegen.CodeGeneratorPipeline fileCtx,
                     boolean verboseCode)

Overrides:

toJavaPredictBody in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

toJavaInit

protected water.util.SBPrintStream toJavaInit(water.util.SBPrintStream sb,
                                  water.codegen.CodeGeneratorPipeline fileCtx)

Overrides:

toJavaInit in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

predictScoreImpl

protected water.fvec.Frame predictScoreImpl(water.fvec.Frame fr,
                                water.fvec.Frame adaptFrm,
                                java.lang.String destination_key,
                                water.Job j,
                                boolean computeMetrics)

Score an already adapted frame. Returns a new Frame with new result vectors, all in the DKV. Caller responsible for deleting. Input is already adapted to the Model's domain, so the output is also. Also computes the metrics for this frame.

Overrides:

predictScoreImpl in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

Parameters:

adaptFrm - Already adapted frame

computeMetrics -

Returns:

A Frame containing the prediction column, and class distribution

makeScoringNames

public java.lang.String[] makeScoringNames()

Overrides:

makeScoringNames in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

scoreMetrics

protected hex.ModelMetrics.MetricBuilder scoreMetrics(water.fvec.Frame adaptFrm)

Score an already adapted frame. Returns a MetricBuilder that can be used to make a model metrics.

Overrides:

scoreMetrics in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>

Parameters:

adaptFrm - Already adapted frame

Returns:

MetricBuilder

getMojo

public GLMMojoWriter getMojo()

Overrides:

getMojo in class hex.Model<GLMModel,GLMModel.GLMParameters,GLMModel.GLMOutput>