“…Single forecasting mainly includes three types. The first is regression analysis based on statistics, and the representatives are VAR ( Wu, Cao, Wen, & Song, 2021 ) and ARMA family, i.e., ARIMA ( Jin et al, 2019 ), SARIMA ( Qiu et al, 2021 ), ARIMAX ( Hu, Qiu, Wu, & Song, 2021 ), and SARIMAX ( Song, Qiu, & Park, 2019 ; Wu, Song, & Shen, 2017 ). They are of better adaptability to linear data.…”