two2024-04-14 16:58:19
如果协方差不平稳,但符合均值存在且恒定,能算出MRL吗?
回答(1)
Huang2024-04-15 00:29:15
同学你好,
协方差不平稳就构建的AR模型是不成立的,所以也不存在有稳定的均值。
The basic idea is that a time series is covariance stationary if its properties, such as mean and variance, do not change over time.
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