st0004_2 from http://www.stata-journal.com/software/sj4-2
    SJ4-2 st0004_2.  Update to residual diagnostics for ... / Update to
    residual diagnostics for cross-section time-series / regression models /
    by C. F. Baum, Boston College / Support:  baum@bc.edu / After
    installation, see help xttest2 and xttest3

st0004_1 from http://www.stata-journal.com/software/sj3-2
    SJ3-2 st0004_1.  Update to residual diagnostics for ... / Update to
    residual diagnostics for cross-sectional time-series / regression models /
    by C. F. Baum, Boston College / Support:  baum@bc.edu / After
    installation, see help xttest2

st0004 from http://www.stata-journal.com/software/sj1-1
    SJ1-1 st0004.  Residual diagnostics for cross-sectional time series /
    Residual diagnostics for cross-sectional time series regression models. /
    by C. F. Baum, Boston College / Support:  baum@bc.edu / After
    installation, see help xttest2, xttest3

xttest2 from http://fmwww.bc.edu/RePEc/bocode/x
    'XTTEST2': module to perform Breusch-Pagan LM test for cross-sectional
    correlation in fixed effects model / xttest2 calculates the Breusch-Pagan
    statistic for / cross-sectional independence in the residuals of a fixed
    effect / regression model or a GLS model estimated from cross-section /

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反正我就是你那里刚开始那样force安装的，都没有什么问题

能不能告诉一下楼上贴出来的搜索到的结果，您安装的是哪个？

Web resources from Stata and other users

(contacting http://www.stata.com)

3 packages found (Stata Journal and STB listed first)
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st0004_2 from http://www.stata-journal.com/software/sj4-2
    SJ4-2 st0004_2.  Update to residual diagnostics for ... / Update to
    residual diagnostics for cross-section time-series / regression models /
    by C. F. Baum, Boston College / Support:  baum@bc.edu / After
    installation, see help xttest2 and xttest3

st0004 from http://www.stata-journal.com/software/sj1-1
    SJ1-1 st0004.  Residual diagnostics for cross-sectional time series /
    Residual diagnostics for cross-sectional time series regression models. /
    by C. F. Baum, Boston College / Support:  baum@bc.edu / After
    installation, see help xttest2, xttest3

xttest3 from http://fmwww.bc.edu/RePEc/bocode/x
    'XTTEST3': module to compute Modified Wald statistic for groupwise
    heteroskedasticity / xttest3 calculates a modified Wald statistic for
    groupwise / heteroskedasticity in the residuals of a fixed effect
    regression / model. It is for use after xtreg, fe or xtgls (with the

最后一个就是啊

我试了 这样安装成功以后 当使用这个命令时 显示安装成功 但是使用的时候却说unrecognized command:  xteest2

非常感谢你的耐心回答，问题已得到解决，太感谢了！

谢谢。下载到了我需要的命令代码

有网络就是好，FORCE是可以搞定的。我用的是12版本。

楼主的问题最后是怎么解决的呢？ 请教

我也是12的，force以后还是不行，请问您怎么解决的呢？

我的是stata10，首先在命令窗口中输入ssc install  xttest3；接着在search中找xttest3时，就可以顺利安装了。

第一行命令回归xtreg y x,fe  第二行命令写xttest3就ok了

这个才是症结所在！谢谢！