Abstract: Various forecasting algorithms have been investigated in various cases. Forecasting is an important activity, especially in the sales area. Accurate sales forecasting is a support system in ...

In the STEPAR method, PROC FORECAST first fits a time trend model to the series and takes the difference between each value and the estimated trend. (This process is called detrending.) Then, the ...

This section briefly introduces the forecasting methods used by the FORECAST procedure. Refer to textbooks on forecasting and see "Forecasting Methods" later in this chapter for more detailed ...

Abstract: Along with the global climate warming, the ecological environment of the earth changes sharply. In order to prevent the worsening environment and protect the benign development trend, ...