Markdown中引用文本的字体大小通常与其他(未引用的)文本形成对比,过大。这是一个例子:
使用RStudio生成。
![enter image description here](https://istack.dev59.com/gfj8z.webp)
#####Intution:
> **[Identification of an MA model is often best done with the ACF rather
> than the PACF]((https://onlinecourses.science.psu.edu/stat510/node/62))**.
>
> For an MA model, the theoretical PACF does not shut off, but instead
> tapers toward 0 in some manner. A clearer pattern for an MA model is
> in the ACF. The ACF will have non-zero autocorrelations only at lags
> involved in the model.
>
> A moving average term in a time series model is a past error (multiplied by a coefficient).
The $q^{\text{th}}$-order moving average model, denoted by MA(q) is