同问请高手指教！

应该是以这些字母开头的命令

All the manuals in the Stata Documentation have a shorthand notation:
[GSM] Getting Started with Stata for Mac
[GSU] Getting Started with Stata for Unix
[GSW] Getting Started with Stata for Windows
[U] Stata User’s Guide
[R] Stata Base Reference Manual
[D] Stata Data-Management Reference Manual
[G] Stata Graphics Reference Manual
[XT] Stata Longitudinal-Data/Panel-Data Reference Manual
[MI] Stata Multiple-Imputation Reference Manual
[MV] Stata Multivariate Statistics Reference Manual
[P] Stata Programming Reference Manual
[SEM] Stata Structural Equation Modeling Reference Manual
[SVY] Stata Survey Data Reference Manual
[ST] Stata Survival Analysis and Epidemiological Tables Reference Manual
[TS] Stata Time-Series Reference Manual
[I ] Stata Quick Reference and Index
[M] Mata Reference Manual

是不同手册的缩写

一年半前了，恍如隔世啊
多谢版主