另外，谁能顺便告诉我macro (global and local)能在mata里用吗？

William Gould 在他的paper里有几段说到：

"The first rule for programming in Mata is to forget that macros even exist. Macros
are not necessary and, in fact, all your ado-file instincts will mislead you. Everything
macros do for you in ado-files is performed in Mata by Mata variables.
........
Mata does not need macros, but that does not mean you cannot work with macros in
Mata. Macros are such an important part of Stata that you will sometimes want to
access a macro’s contents or change those contents.
........."

简言之，按理mata不须要macro，
但如果您真的手痒，好吧！
请
help st_local
help st_global

参考就好，我mata不熟的。

非常感谢！我可以想象比如说，用像是matlab里的multidimensional array之类的东西来代替macro用来给矩阵命名什么的，不过我最喜欢stata的地方就是macro的存在。