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Difficulty: Easy
Category: data_manipulation
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Topics: vwap, execution_quality, microstructure, rolling_window, data_manipulation
Volume-weighted average price (VWAP) is a benchmark used by execution desks to measure fill quality against the market's volume profile. A rolling VWAP over a sliding window tracks how the benchmark evolves intraday and helps detect deviation from fair value. Task Implement rolling_vwap(prices, volumes, window) that computes the VWAP over each consecutive window of window trades. For each window starting at index i: $$\text{VWAP}_i = \frac{\sum_{j=i}^{i+w-1} p_j \cdot v_j}{\sum_{j=i}^{i+w-1} v_
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