我在检验异方差性和自相关性时，用xtgls y x,panels(he)得到的资料该怎么分析啊，

另外corr(psar1)输入时出现如下内容：date is not regularly spaced or does not have intervals of 1 -- use
the force option to treat the intervals as though they were regular

[此贴子已经被作者于2007-10-8 21:27:15编辑过]