计量经济学李子奈版P118的异方差性检验与修正中，为什么我的怀特检验去掉交叉项的结果没有解释变量的平方项呢[img]file:///C:/Documents%20and%20Settings/Administrator/Application%20Data/Tencent/Users/380052084/QQ/WinTemp/RichOle/RM%25_HWT(R%7D[3HB7UXVG%25OH3.jpg[/img] [img]file:///C:/Documents%20and%20Settings/Administrator/Application%20Data/Tencent/Users/380052084/QQ/WinTemp/RichOle/OH%7D4M5N%7B99$Q[9_(A$%600LH3.jpg[/img]
这里去掉交叉项
怎么结果是这样子呢？