换话题
发表于 2025-3-23 11:27:40
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万灵丹
发表于 2025-3-23 15:18:42
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armistice
发表于 2025-3-23 18:45:12
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heterogeneous
发表于 2025-3-23 22:26:45
Stationary Processes,en clearly we must assume that . does not vary with time. In extrapolating deterministic functions it is common practice to assume that either the function itself or one of its derivatives is constant. The assumption of a constant first derivative leads to linear extrapolation as a means of predicti
多余
发表于 2025-3-24 02:36:07
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jumble
发表于 2025-3-24 07:16:40
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晚间
发表于 2025-3-24 11:25:37
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联想记忆
发表于 2025-3-24 16:02:42
Nonstationary and Seasonal Time Series Models,erated by a stationary time series. If the data (a) exhibit no apparent deviations from stationarity and (b) have a rapidly decreasing autocovariance function, we attempt to fit an ARMA model to the mean-corrected data using the techniques developed in Chapter 5. Otherwise we look first for a transf
阴险
发表于 2025-3-24 21:48:22
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Synovial-Fluid
发表于 2025-3-25 01:02:40
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