去趋势 meaning in English
detrend
Examples
- Firstly , utilizing grey - separate model makes time - series take speadily , that is to say , use the grey model to prune the trend one x ( t ) ; and the array got is a steady time array y ( t ) ; secondly , using arima models y ( t ) ; lastly , we get combined predication model of w ( t )
首先利用灰色分离模型法使时间序列平稳化，即利用灰色模型削去趋势项x （ t厂得到的序列既是平稳时间序列y （ t广然后利用aaima模型法对y （ t ）建模，最后得到原始数列叫t ）的组合预测模型。