我的数据是非平衡面板,下载安装了命令xtsur, 现在模型是:
xtsur (y1 x1 x2x3) (y2 x2 x3 x4) (y3 x1 x4)
回归的结果总是显示出错:
classdef _b_stat() in use
(nothing dropped)
(327 lines skipped)
(error occurred while loading xtsur.ado)
怎么解决?