Weighted average
Sample: S = [S . 1 , S 2 , ..., S n- ]
Weight: W is = [W . 1 , W 2 , ..., W n- ]
Weighted average: A = (S . 1 W . 1 + S 2 W 2 + ... + S n- W n- ) / (W . 1 + W 2 + ... + W n- )
np.average(closing_prices, weights=volumes)
Data analysis (six)
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Origin www.cnblogs.com/maplethefox/p/11458496.html
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