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  1. pinggu.org
    https://bbs.pinggu.org/thread-4678244-1-1.html

    Heckman twostep 回归结果提示“dependent variable因变量名 …

  2. pinggu.org
    https://bbs.pinggu.org/thread-11161836-1-1.html

    DID平行趋势图往前的年份均显示共线性，怎么办？ - Stata ...

  3. pinggu.org
    https://bbs.pinggu.org/thread-11582396-1-1.html

    xtivreg2 工具变量回归问题 - Stata专版 - 经管之家(原人大 ...

  4. pinggu.org
    https://bbs.pinggu.org/thread-184292-1-1.html

    求助关于固定效应 - Stata专版 - 经管之家(原人大经济论坛)

  5. pinggu.org
    https://bbs.pinggu.org/thread-11175595-1-1.html

    reghdfe运行后提示与固定效应存在共线性 - Stata专版 - 经管之 ...

  6. pinggu.org
    https://bbs.pinggu.org/thread-11792590-1-1.html

    [回归分析求助]为什么用reghdfe回归出来的结果里Age被 ...

  7. pinggu.org
    https://bbs.pinggu.org/thread-2791381-1-1.html

    线性判别分析：variables are collinear - R语言论坛 - 经管之家 ...

  8. pinggu.org
    https://bbs.pinggu.org/thread-3504696-1-1.html

    菜鸟求教：面板检验出现 omitted because of collinearity怎么 ...

  9. pinggu.org
    https://bbs.pinggu.org/thread-1200561-1-1.html

    independent variables are collinear with the panel variable pid

  10. toppr.com
    https://www.toppr.com/ask/question/in-the-given-figure-the-common-tangents-ab-a…

    In the given figure , the common tangents AB and CD to two …