Package org.tribuo.classification.example

Class CheckerboardDataSource

java.lang.Object

org.tribuo.classification.example.DemoLabelDataSource

org.tribuo.classification.example.CheckerboardDataSource

All Implemented Interfaces:

com.oracle.labs.mlrg.olcut.config.Configurable, com.oracle.labs.mlrg.olcut.provenance.Provenancable<DataSourceProvenance>, Iterable<Example<Label>>, ConfigurableDataSource<Label>, DataSource<Label>

public final class CheckerboardDataSource
extends DemoLabelDataSource

Creates a data source using a 2d checkerboard of alternating classes.

Nested Class Summary

Nested classes/interfaces inherited from class org.tribuo.classification.example.DemoLabelDataSource

DemoLabelDataSource.DemoLabelDataSourceProvenance

Field Summary

Fields inherited from class org.tribuo.classification.example.DemoLabelDataSource

examples, factory, FIRST_CLASS, numSamples, rng, SECOND_CLASS, seed, X1, X2

Constructor Summary

Constructors

Constructor	Description
CheckerboardDataSource(int numSamples, long seed, int numSquares, double min, double max)	Creates a checkboard with the required number of squares per dimension, where each feature value lies between min and max.

Method Summary

Modifier and Type	Method	Description
protected List<Example<Label>>	generate()	Generates the examples using the configured fields.
void	postConfig()	Used by the OLCUT configuration system, and should not be called by external code.
String	toString()

Methods inherited from class org.tribuo.classification.example.DemoLabelDataSource

getOutputFactory, getProvenance, iterator

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

CheckerboardDataSource

public CheckerboardDataSource(int numSamples,
 long seed,
 int numSquares,
 double min,
 double max)

Creates a checkboard with the required number of squares per dimension, where each feature value lies between min and max.

Parameters:

numSamples - The number of samples to generate.

seed - The RNG seed.

numSquares - The number of squares.

min - The minimum feature value.

max - The maximum feature value.

Method Details

postConfig

public void postConfig()

Used by the OLCUT configuration system, and should not be called by external code.

Specified by:

postConfig in interface com.oracle.labs.mlrg.olcut.config.Configurable

Overrides:

postConfig in class DemoLabelDataSource

generate

protected List<Example<Label>> generate()

Description copied from class: DemoLabelDataSource

Generates the examples using the configured fields.

Is called internally by DemoLabelDataSource.postConfig().

Specified by:

generate in class DemoLabelDataSource

Returns:

The generated examples.

toString

public String toString()

Overrides:

toString in class Object