Math Problem Statement
수학식을 통해 자세하고 직관적이게 설명
Solution
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Math Problem Analysis
Mathematical Concepts
차분 (Difference)
계절성 (Seasonality)
추세 (Trend)
Box-Cox 변환 (Box-Cox Transformation)
Formulas
1차 차분 (First Difference): Y_t - Y_{t-1}
2차 차분 (Second Difference): Y_t - 2Y_{t-1} + Y_{t-2}
계절성 함수: Y_t = f(t) + Y^s_t
추세 함수: Y_t = f(t) + Y^s_t
Box-Cox 변환 함수: Y(\lambda) = \frac{Y^\lambda - 1}{\lambda} (when \lambda \neq 0), Y(\lambda) = \log(Y) (when \lambda = 0)
Theorems
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Suitable Grade Level
전문가 수준
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