As goldfeld - quandt test can only be applied to one independent variable, it is generalized in the second section. it shows that, in multivariate situation, the data can be arranged according to their principle components. but there should be a premise : the disturbances of the lower data group should have equal variance and those of the higher data group have the same variance
由於戈德菲爾德-
匡特檢驗方法只適用於一個自變量,因此,本文對g - q檢驗進行了推廣,說明在多變量的情況下,可以利用主成分對樣本數據進行排序,並強調使用戈德菲爾德-
匡特檢驗的前提:低樣本組各觀察值的擾動項必須具有同方差性;高樣本組各觀察值的擾動項
也必須具有同方差性,否則,檢驗的結果可能是錯誤的。
Then i went to quantico, went to top of my class. i ' m nothing like -
后來我去了弗吉尼亞州的
匡提柯當上了我班上的頭名,我一點
也不像-
Then i went to quantico, went to top of my class. i ' m nothing like - -
后來我去了弗吉尼亞州的匡提柯當上了我班上的頭名,我一點也不像- -