求高人指点，非常感谢，我在安装inequal命令时出现问题，用search inequal然后点击sg30，或者用ssc install inequal都会出现如下提示，
connection timed out -- see help r(2) for troubleshooting
http://fmwww.bc.edu/repec/bocode/i/ either
1)  is not a valid URL, or
2)  could not be contacted, or
3)  is not a Stata download site (has no stata.toc file).
r(2);