Package org.tribuo.classification.example

Class ConcentricCirclesDataSource

java.lang.Object

org.tribuo.classification.example.DemoLabelDataSource

org.tribuo.classification.example.ConcentricCirclesDataSource

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 ConcentricCirclesDataSource
extends DemoLabelDataSource

A data source for two concentric circles, one per class.

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
ConcentricCirclesDataSource(int numSamples, long seed, double radius, double classProportion)	Constructs a data source for two concentric circles, one per class.

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

ConcentricCirclesDataSource

public ConcentricCirclesDataSource(int numSamples,
 long seed,
 double radius,
 double classProportion)

Constructs a data source for two concentric circles, one per class.

Parameters:

numSamples - The number of samples to generate.

seed - The RNG seed.

radius - The radius of the outer circle.

classProportion - The proportion of the circle area that forms class 1.

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