Growth can be represented by a linear or log linear trend . 增長可以用線性或?qū)?shù)線性趨勢來表示。
Other linear trends may also exist, but much of the activity seems somewhat random in nature . 也許還有其他的線狀趨勢帶,但是,大量活動就其性質(zhì)而言,看來有點隨機性。
This extraordinarily large forecast suggests, however, that we must be more careful in forecasting with a parabolic curve than we are when using a linear trend . 然而,這個龐大的預(yù)測數(shù)字說明,使用拋物線做出預(yù)測比使用直線趨勢做出預(yù)測必須更加慎重。
Unit root test for seasonal time series with seasonal linear trend 的時間序列模型的建立與分析
Linear trend and abrupt change of sea ice in arctic and antarctic withits relation to atmospheric circulation 北極海冰的長期變化趨勢及其與大氣環(huán)流的聯(lián)系