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  • command xtoverid

    Hello,

    I run:

    >quietly xtreg depvar indvars , fe cluster(id)
    >estimates store fixed
    >quietly xtreg depvar indvars , re cluster(id)
    >estimates store random
    >ssc install xtoverid
    >xtoverid
    Error - must have ivreg2/ivreg29/ivreg28 version 2.1.15 or greater installed
    >ssc install ivreg2
    >ssc install ranktest
    >xtoverid
    0b: operator invalid

    What's the problem?

    Thank you in advance

  • #2
    You'll increase your chances of a useful answer by following the FAQ on asking questions - provide Stata code in code delimiters, readable Stata output, and sample data using dataex. Being able to replicate your problem will really help us help you.

    You probably need to run the regression right before xtoverid. It also seems to want xtreg,re only to do the test.

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