Time Series Decomposition Explorer

Classical vs STL — adjust parameters and see how decomposition algorithms break a time series into trend, seasonal, and remainder components

Dataset

Decomposition

STL Parameters

Display

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Trend Strength
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Seasonal Strength
—
Remainder Var
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Period
Original Series
Trend-Cycle
Seasonal
Remainder

Advisory

Data: Simulated monthly supply chain datasets. Decomposition algorithms (Classical 2x12-MA and STL with LOESS) implemented in JavaScript following Hyndman & Athanasopoulos (2021) Forecasting: Principles and Practice, 3rd ed., Ch. 3. All computations run live in your browser.