seemingly unrelated regression造句
例句與造句
- A kind of pre - test estimators in two seemingly unrelated regressions
回歸方程系統(tǒng)的預(yù)檢驗估計 - Because the dependent variable in the models is the share of consumption of food , and the models are equation of demand system , therefore , zellner s seemingly unrelated regression method is applied to estimate the models
因為在模型中作為因變量的是食物的消費份額，同時模型是需求系統(tǒng)方程，因而，采用近乎非相關(guān)的系統(tǒng)迭代回歸法進行模型估計。 - In the late 30 or 40 years , many scholars have a lot of studies on a seemingly unrelated regression ( sdr ) system with two linear regression models , and some important results are obtained : zellner ( 1962 ) put forward two - stage estimator ( tse ) ; based on zellner " s , lin chun - shi ( 1984 ) obtained the sufficient and necessary condition of two - stage estimator ; chen chang - hua ( 1986 ) discussed the tse and its optimalities without any condition for designed - matrix x ; ulteriorly , wang song - gui and van li - qing ( 1997 ) obtained an iteration sequence of estimator by using the covariance - improved approach ; liu jin - shan ( 1994 ) , li wen and lin ju - gan ( 1997 ) generalized the covariance - improved estimator respectively
半相依回歸系統(tǒng)是由兩個誤差項相關(guān)的線性回歸方程組成的系統(tǒng)。近三、四十年來，已有很多的學(xué)者對這類半相依回歸系統(tǒng)進行了大量的研究，作出了十分重要的成果： zellner ( 1962 )提出了所謂兩步估計法；在其基礎(chǔ)上，林春士( 1984 )得出了兩步估計的充要條件，陳昌華( 1986 )討論了對設(shè)計矩陣不作任何要求的兩步估計及其優(yōu)良性；進一步地，王松貴、嚴(yán)利清( 1997 )利用協(xié)方差改進法獲得了參數(shù)的一個迭代估計序列，劉金山( 1994 ) ，李文、林舉干( 1997 )則分別對協(xié)方差改進估計進行了推廣。 - It's difficult to find seemingly unrelated regression in a sentence. 用seemingly unrelated regression造句挺難的