Moving-average model

（重定向自MA model）

In time series analysis, the moving-average (MA) model is a common approach for modeling univariate time series. The notation MA(q) refers to the moving average model of order q:

where μ is the mean of the series, the θ₁, ..., θ_q are the parameters of the model and the ε_t, ε_t−1,..., ε_t−q are white noise error terms. The value of q is called the order of the MA model. This can be equivalently written in terms of the backshift operator B as

单词	MA model
释义	MA model 英语百科 Moving-average model （重定向自MA model） In time series analysis, the moving-average (MA) model is a common approach for modeling univariate time series. The notation MA(q) refers to the moving average model of order q: where μ is the mean of the series, the θ₁, ..., θ_q are the parameters of the model and the ε_t, ε_t−1,..., ε_t−q are white noise error terms. The value of q is called the order of the MA model. This can be equivalently written in terms of the backshift operator B as
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