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    Analyzing longitudinal unbalanced data - mixed effect quantile regression

    Hi! it's been a month now and I've learned a lot of new things. through Stata I've tried working with Xtqreg, which is a command that can seemingly process longitudinal data. The only thing I don't really understand is how I'm supposed to make a random intercept model now. I've attached my...
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    Analyzing longitudinal unbalanced data - mixed effect quantile regression

    Thanks again for your reply, very much appreciated! To answer your question, I am looking to use the quantile regression to complement my basic analysis, for which I am indeed using a mixed method model regression, both linear and logistic. The reason to do this quantile regression is to see...
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    Analyzing longitudinal unbalanced data - mixed effect quantile regression

    Yes, correct, that's why I want to do a mixed effect/multilevel model. With "not all companies have the same number of measurements/observations" I mean the next: In my dataset I have 6000 companies, of which some have measurements in for example 2001, 2002 and 2003, whilst others have...
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    Analyzing longitudinal unbalanced data - mixed effect quantile regression

    Hi Guys, For my master thesis I have to analyze a large set of longitudinal data, where company data is remeasured every year. Within these data, not all companies have the same number of measurements, which makes the data unbalanced. Since longitudinal data comes with dependence...