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c = exp |
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+ S3 |
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a | = exp |
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•Where S1, S2, and S3 are:
n
S1 = ∑Inyi = n lnc +
i = 1
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2n
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b – 1
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2 | i |
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i = n + 1
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•a, b and c are determined by solving the three equations above simulta- neously.
Forecasting With Exponential Smoothing
•a = smoothing constant (0 < a < 1)
•Xt = actual current period usage