hex

Class ModelMetrics.MetricBuilder

java.lang.Object

water.Iced

hex.ModelMetrics.MetricBuilder

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, Freezable

Enclosing class:

ModelMetrics

public static final class ModelMetrics.MetricBuilder
extends Iced

Class used to compute AUCs, CMs & HRs "on the fly" during other passes over Big Data. This class is intended to be embedded in other MRTask objects. The perRow method is called once-per-scored-row, and the reduce method called once per MRTask.reduce, and the <init> called once per MRTask.map.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
double	_sumsqe
float[]	_work

Constructor Summary

Constructors

Constructor and Description
ModelMetrics.MetricBuilder(java.lang.String[] domain)
ModelMetrics.MetricBuilder(java.lang.String[] domain, float[] thresholds)

Method Summary

Methods

Modifier and Type	Method and Description
ModelMetrics	makeModelMetrics(Model m, Frame f, double sigma)
float[]	perRow(float[] ds, float yact)
void	reduce(ModelMetrics.MetricBuilder mb)

Methods inherited from class water.Iced

clone, frozenType, read_impl, read, readExternal, readJSON_impl, readJSON, toJsonString, write_impl, write, writeExternal, writeHTML_impl, writeHTML, writeJSON_impl, writeJSON

Methods inherited from class java.lang.Object

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

Field Detail

_sumsqe

public double _sumsqe

_work

public transient float[] _work

Constructor Detail

ModelMetrics.MetricBuilder

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

ModelMetrics.MetricBuilder

public ModelMetrics.MetricBuilder(java.lang.String[] domain,
                          float[] thresholds)

Method Detail

perRow

public float[] perRow(float[] ds,
             float yact)

reduce

public void reduce(ModelMetrics.MetricBuilder mb)

makeModelMetrics

public ModelMetrics makeModelMetrics(Model m,
                            Frame f,
                            double sigma)