Elliott Wave Quickstart

Use this page when you want the shortest path to running Elliott Wave analysis in ta4j.

For full theory, component internals, scenario scoring, and advanced usage, see Elliott Wave Indicators.

1) Start with the facade (recommended)

BarSeries series = ...;
int index = series.getEndIndex();

// Optional: loosen/tighten Fibonacci validation for both phase() and scenarios()
Num fibTolerance = series.numFactory().numOf(0.25);
ElliottWaveFacade facade = ElliottWaveFacade.fractal(
        series, 5, ElliottDegree.INTERMEDIATE, Optional.of(fibTolerance), Optional.empty());

ElliottPhase phase = facade.phase().getValue(index);
ElliottScenarioSet scenarios = facade.scenarios().getValue(index);
Num invalidation = facade.invalidationLevel().getValue(index);

Use this path when you need indicator-style access inside rules or chart overlays.

For strategy entries/exits, prefer the public rules in org.ta4j.core.rules.elliott (for example ElliottScenarioConfidenceRule, ElliottImpulsePhaseRule, ElliottScenarioInvalidationRule) wired to facade.scenarios() — see Elliott Wave Indicators — Built-in scenario rules.

2) Use one-shot analysis for reports

ElliottWaveAnalysisRunner runner = ElliottWaveAnalysisRunner.builder()
        .degree(ElliottDegree.INTERMEDIATE)
        .logicProfile(ElliottLogicProfile.ORTHODOX_CLASSICAL) // optional 0.22.7 preset
        .build();
ElliottWaveAnalysisResult result = runner.analyze(series);

Use this path when you want report generation or standalone analysis steps.

3) Integrate into strategy logic

• Prefer confidence-aware filters instead of forcing a single hard wave count.
• Treat invalidation levels as risk controls, not guaranteed turns.
• Validate with walk-forward methods before relying on live deployment.

4) Verify with maintained examples

• ta4jexamples.analysis.elliottwave.ElliottWaveIndicatorSuiteDemo
• ta4jexamples.analysis.elliottwave.ElliottWavePresetDemo
• ta4jexamples.analysis.elliottwave.backtest.HighRewardElliottWaveBacktest

Related pages

• Elliott Wave Indicators
• Walk-Forward Research
• Backtesting Realism Checklist