Time-Series Forecasting Code with Sound Temporal Validation
Write a time-series forecasting pipeline handling seasonality, trend, and gaps, with sound temporal validation free of future leakage and correct-metric evaluation, without inventing functions.
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Model: claude-sonnet-4-7
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Knowledge: 2026-Q2
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Building a demand-forecasting model for inventory management, predicting electricity consumption or visitor traffic, preparing a monthly sales forecast with uncertainty intervals for financial planning.
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Cover diagnosis, preprocessing, model, validation, and evaluation without truncation
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Adherence to the six-section structure and baseline-comparison table