The Extrapolator trading indicator uses multiple extrapolation methods to forecast future price levels of a currency pair. It plots a two-color line on the chart where:
- the blue line represents historical price of the currency pair;
- the red line shows the predicted future price.
The Extrapolator indicator supports six extrapolation methods, selected via the Method parameter:
- Method 1: Fourier series extrapolation; frequencies computed using the Quinn-Fernandes Algorithm
- Method 2: Autocorrelation Method
- Method 3: Weighted Burg Method
- Method 4: Burg Method with Helme-Nikias weighting function
- Method 5: Itakura-Saito (geometric) method
- Method 6: Modified covariance method
Methods 2–6 are linear prediction techniques — they estimate future values as linear combinations of past price observations.
The Extrapolator trading indicator stands out due to its six distinct extrapolation algorithms — making it a compelling forecasting tool. However, like all predictive indicators, it relies solely on historical price data, which offers no guarantee that future price movement will match the forecast.
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FAQ
What does the Extrapolator indicator do?
It forecasts future price levels of a currency pair using six mathematical extrapolation methods — from Fourier series to linear prediction algorithms.
Is Extrapolator suitable for real-time trading decisions?
It can support decision-making, but should not be used in isolation — always combine with risk management and confirmation from other signals or analysis.
Which extrapolation method is most accurate?
No single method is universally best; accuracy depends on market conditions, timeframe, and volatility. Traders should test each method across different assets and periods.
