mohadis 发表于 2011-9-8 00:36
The problems can be solved using steps below:
1. download xtptm
2. unrar/unzip the file to a speci ...
能和你交流吗?我正在写论文可是门槛值不会求,想用xtptm程序却用不好,我想寻求你的帮助。
我按照你说的方法,首先下载moremata,然后把xtptm按照到c盘stata中ado文件夹下,在stata中打开xtptm.ado和stradd,接着打开数据,运行xtptm cash cashflow salesgrow lev div nwc capx rx(xtptm) thvar(larsh) iters(50) regime(1)却显示factor variables and time-series operators not allowed,我不太明白怎么回事