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关注：1
2013-05-23 12:21
求翻译：This integrated moving average model can also be viewed as follows: The“true” time series is a random walk Yt − Yt−1= bt where {bt} is a Gaussian white noise process with mean zero and variance σ2b.是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
This integrated moving average model can also be viewed as follows: The“true” time series is a random walk Yt − Yt−1= bt where {bt} is a Gaussian white noise process with mean zero and variance σ2b.
问题补充： |
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